diff --git a/packages/insomnia-app/flow-typed/autobind-decorator.js b/packages/insomnia-app/flow-typed/autobind-decorator.js
index 88ace1e128..b29d11d9e0 100644
--- a/packages/insomnia-app/flow-typed/autobind-decorator.js
+++ b/packages/insomnia-app/flow-typed/autobind-decorator.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'autobind-decorator' {
   declare module.exports: *;
 }
diff --git a/packages/insomnia-app/flow-typed/aws4.js b/packages/insomnia-app/flow-typed/aws4.js
index b2b4394fe1..4dfa383e38 100644
--- a/packages/insomnia-app/flow-typed/aws4.js
+++ b/packages/insomnia-app/flow-typed/aws4.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'aws4' {
   declare module.exports: {
     sign: (
diff --git a/packages/insomnia-app/flow-typed/classnames.js b/packages/insomnia-app/flow-typed/classnames.js
index c7c86d2c35..b7dcf6b772 100644
--- a/packages/insomnia-app/flow-typed/classnames.js
+++ b/packages/insomnia-app/flow-typed/classnames.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'classnames' {
   declare module.exports: (...args: Array<any>) => Object;
 }
diff --git a/packages/insomnia-app/flow-typed/clone.js b/packages/insomnia-app/flow-typed/clone.js
index 783a5fbac3..c022a420c5 100644
--- a/packages/insomnia-app/flow-typed/clone.js
+++ b/packages/insomnia-app/flow-typed/clone.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'clone' {
   declare module.exports: <T>(value: T) => T;
 }
diff --git a/packages/insomnia-app/flow-typed/codemirror.js b/packages/insomnia-app/flow-typed/codemirror.js
index 191b4af135..3d10999f5b 100644
--- a/packages/insomnia-app/flow-typed/codemirror.js
+++ b/packages/insomnia-app/flow-typed/codemirror.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'codemirror' {
   declare class TextMarker {
     clear(): void;
diff --git a/packages/insomnia-app/flow-typed/electron-squirrel-startup.js b/packages/insomnia-app/flow-typed/electron-squirrel-startup.js
index 7dd88d5e00..c76eea5a6f 100644
--- a/packages/insomnia-app/flow-typed/electron-squirrel-startup.js
+++ b/packages/insomnia-app/flow-typed/electron-squirrel-startup.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'electron-squirrel-startup' {
   declare module.exports: *;
 }
diff --git a/packages/insomnia-app/flow-typed/electron.js b/packages/insomnia-app/flow-typed/electron.js
index 6f3c8550bc..7e048a7ca8 100644
--- a/packages/insomnia-app/flow-typed/electron.js
+++ b/packages/insomnia-app/flow-typed/electron.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'electron' {
   declare module.exports: {
     remote: {
diff --git a/packages/insomnia-app/flow-typed/fs-extra.js b/packages/insomnia-app/flow-typed/fs-extra.js
index db24ee086f..0f2c742546 100644
--- a/packages/insomnia-app/flow-typed/fs-extra.js
+++ b/packages/insomnia-app/flow-typed/fs-extra.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'fs-extra' {
   declare module.exports: {
     moveSync: (
diff --git a/packages/insomnia-app/flow-typed/graphql.js b/packages/insomnia-app/flow-typed/graphql.js
index 94a1f8a0c3..939734dbd6 100644
--- a/packages/insomnia-app/flow-typed/graphql.js
+++ b/packages/insomnia-app/flow-typed/graphql.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'graphql' {
   declare type Tok = {
     column: number,
diff --git a/packages/insomnia-app/flow-typed/hawk.js b/packages/insomnia-app/flow-typed/hawk.js
index 71e373f410..dca1d8b62a 100644
--- a/packages/insomnia-app/flow-typed/hawk.js
+++ b/packages/insomnia-app/flow-typed/hawk.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'hawk' {
   declare module.exports: *;
 }
diff --git a/packages/insomnia-app/flow-typed/iconv-lite.js b/packages/insomnia-app/flow-typed/iconv-lite.js
index 571dd549ce..8b0bb3cd8d 100644
--- a/packages/insomnia-app/flow-typed/iconv-lite.js
+++ b/packages/insomnia-app/flow-typed/iconv-lite.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'iconv-lite' {
   declare module.exports: *;
 }
diff --git a/packages/insomnia-app/flow-typed/insomnia-cookies.js b/packages/insomnia-app/flow-typed/insomnia-cookies.js
index e5ca0fd1ee..afb6515516 100644
--- a/packages/insomnia-app/flow-typed/insomnia-cookies.js
+++ b/packages/insomnia-app/flow-typed/insomnia-cookies.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'insomnia-cookies' {
   declare module.exports: {
     cookieToString: Function,
diff --git a/packages/insomnia-app/flow-typed/insomnia-importers.js b/packages/insomnia-app/flow-typed/insomnia-importers.js
index f33d22dfe6..70e5023b8f 100644
--- a/packages/insomnia-app/flow-typed/insomnia-importers.js
+++ b/packages/insomnia-app/flow-typed/insomnia-importers.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'insomnia-importers' {
   declare module.exports: {
     convert: (
diff --git a/packages/insomnia-app/flow-typed/insomnia-libcurl.js b/packages/insomnia-app/flow-typed/insomnia-libcurl.js
index aa6196a9da..9e2a32127a 100644
--- a/packages/insomnia-app/flow-typed/insomnia-libcurl.js
+++ b/packages/insomnia-app/flow-typed/insomnia-libcurl.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare class Curl {
   static getVersion: () => string;
   static feature: {
diff --git a/packages/insomnia-app/flow-typed/insomnia-plugin-hash.js b/packages/insomnia-app/flow-typed/insomnia-plugin-hash.js
index 0937d64c66..1652406406 100644
--- a/packages/insomnia-app/flow-typed/insomnia-plugin-hash.js
+++ b/packages/insomnia-app/flow-typed/insomnia-plugin-hash.js
@@ -1,3 +1,5 @@
+// @flow
+
 import type { PluginTemplateTag } from '../app/templating/extensions/index';
 
 declare module 'insomnia-plugin-hash' {
diff --git a/packages/insomnia-app/flow-typed/insomnia-prettify.js b/packages/insomnia-app/flow-typed/insomnia-prettify.js
index 2977296999..4bdc561766 100644
--- a/packages/insomnia-app/flow-typed/insomnia-prettify.js
+++ b/packages/insomnia-app/flow-typed/insomnia-prettify.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'insomnia-prettify' {
   declare module.exports: {
     json: Function
diff --git a/packages/insomnia-app/flow-typed/insomnia-url.js b/packages/insomnia-app/flow-typed/insomnia-url.js
index 6705145f97..31669c8eeb 100644
--- a/packages/insomnia-app/flow-typed/insomnia-url.js
+++ b/packages/insomnia-app/flow-typed/insomnia-url.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'insomnia-url' {
   declare module.exports: {
     setDefaultProtocol: Function,
diff --git a/packages/insomnia-app/flow-typed/jsonpath.js b/packages/insomnia-app/flow-typed/jsonpath.js
index 1dfe3d2c8a..dd71119fa4 100644
--- a/packages/insomnia-app/flow-typed/jsonpath.js
+++ b/packages/insomnia-app/flow-typed/jsonpath.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'jsonpath' {
   declare module.exports: {
     query: Function
diff --git a/packages/insomnia-app/flow-typed/jwt-authentication.js b/packages/insomnia-app/flow-typed/jwt-authentication.js
index e676cb100c..21484b56b5 100644
--- a/packages/insomnia-app/flow-typed/jwt-authentication.js
+++ b/packages/insomnia-app/flow-typed/jwt-authentication.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'jwt-authentication' {
   declare module.exports: *;
 }
diff --git a/packages/insomnia-app/flow-typed/mime-types.js b/packages/insomnia-app/flow-typed/mime-types.js
index 448060ec57..9b16780c64 100644
--- a/packages/insomnia-app/flow-typed/mime-types.js
+++ b/packages/insomnia-app/flow-typed/mime-types.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'mime-types' {
   declare module.exports: {
     lookup: (fileName: string) => string,
diff --git a/packages/insomnia-app/flow-typed/mkdirp.js b/packages/insomnia-app/flow-typed/mkdirp.js
index d80bf7d300..0280d455d2 100644
--- a/packages/insomnia-app/flow-typed/mkdirp.js
+++ b/packages/insomnia-app/flow-typed/mkdirp.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'mkdirp' {
   declare module.exports: {
     sync: (path: string) => void
diff --git a/packages/insomnia-app/flow-typed/moment.js b/packages/insomnia-app/flow-typed/moment.js
index b15df649b6..dd40045911 100644
--- a/packages/insomnia-app/flow-typed/moment.js
+++ b/packages/insomnia-app/flow-typed/moment.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare type moment = {
   fromNow: () => string,
   format: (fmt: string) => string
diff --git a/packages/insomnia-app/flow-typed/multiparty.js b/packages/insomnia-app/flow-typed/multiparty.js
index 8e6667c5d3..6a9b8f7215 100644
--- a/packages/insomnia-app/flow-typed/multiparty.js
+++ b/packages/insomnia-app/flow-typed/multiparty.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'multiparty' {
   declare module.exports: *;
 }
diff --git a/packages/insomnia-app/flow-typed/nedb.js b/packages/insomnia-app/flow-typed/nedb.js
index 91a0dde2b9..ce87e75a57 100644
--- a/packages/insomnia-app/flow-typed/nedb.js
+++ b/packages/insomnia-app/flow-typed/nedb.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare class NeDB {
   constructor(config: Object): NeDB;
   persistence: {
diff --git a/packages/insomnia-app/flow-typed/nunjucks.js b/packages/insomnia-app/flow-typed/nunjucks.js
index b30bb1c143..9ae5402de4 100644
--- a/packages/insomnia-app/flow-typed/nunjucks.js
+++ b/packages/insomnia-app/flow-typed/nunjucks.js
@@ -1,3 +1,5 @@
+// @flow
+
 type NunjucksConfig = {
   autoescape: boolean,
   throwOnUndefined: boolean,
diff --git a/packages/insomnia-app/flow-typed/oauth-1.0a.js b/packages/insomnia-app/flow-typed/oauth-1.0a.js
index fbb4bd2254..aef415aa3b 100644
--- a/packages/insomnia-app/flow-typed/oauth-1.0a.js
+++ b/packages/insomnia-app/flow-typed/oauth-1.0a.js
@@ -1,3 +1,5 @@
+// @flow
+
 type SignatureMethod = 'HMAC-SHA1' | 'RSA-SHA1' | 'PLAINTEXT';
 type Token = { key: string, secret?: string };
 type RequestData = {
diff --git a/packages/insomnia-app/flow-typed/papaparse.js b/packages/insomnia-app/flow-typed/papaparse.js
index 26bea29a5c..0a957b48bf 100644
--- a/packages/insomnia-app/flow-typed/papaparse.js
+++ b/packages/insomnia-app/flow-typed/papaparse.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'papaparse' {
   declare module.exports: {
     parse: Function
diff --git a/packages/insomnia-app/flow-typed/pdfjs-dist.js b/packages/insomnia-app/flow-typed/pdfjs-dist.js
index d24ba4f82f..f102e0ba28 100644
--- a/packages/insomnia-app/flow-typed/pdfjs-dist.js
+++ b/packages/insomnia-app/flow-typed/pdfjs-dist.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'pdfjs-dist/webpack' {
   declare module.exports: *;
 }
diff --git a/packages/insomnia-app/flow-typed/react-sortable-hoc.js b/packages/insomnia-app/flow-typed/react-sortable-hoc.js
index da0d6d0d70..c5ff3bba44 100644
--- a/packages/insomnia-app/flow-typed/react-sortable-hoc.js
+++ b/packages/insomnia-app/flow-typed/react-sortable-hoc.js
@@ -1,3 +1,5 @@
+// @flow
+
 import * as React from 'react';
 
 declare module 'react-sortable-hoc' {
diff --git a/packages/insomnia-app/flow-typed/react-tabs.js b/packages/insomnia-app/flow-typed/react-tabs.js
index 57a857ff2a..212329d865 100644
--- a/packages/insomnia-app/flow-typed/react-tabs.js
+++ b/packages/insomnia-app/flow-typed/react-tabs.js
@@ -1,3 +1,5 @@
+// @flow
+
 import * as React from 'react';
 
 declare module 'react-tabs' {
diff --git a/packages/insomnia-app/flow-typed/reselect.js b/packages/insomnia-app/flow-typed/reselect.js
index 530688d393..3a5cdf9949 100644
--- a/packages/insomnia-app/flow-typed/reselect.js
+++ b/packages/insomnia-app/flow-typed/reselect.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'reselect' {
   declare module.exports: {
     createSelector: Function
diff --git a/packages/insomnia-app/flow-typed/tough-cookie.js b/packages/insomnia-app/flow-typed/tough-cookie.js
index 698e475264..6d7d22a190 100644
--- a/packages/insomnia-app/flow-typed/tough-cookie.js
+++ b/packages/insomnia-app/flow-typed/tough-cookie.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'tough-cookie' {
   declare module.exports: *;
 }
diff --git a/packages/insomnia-app/flow-typed/uuid.js b/packages/insomnia-app/flow-typed/uuid.js
index db38e98c3d..37a8349428 100644
--- a/packages/insomnia-app/flow-typed/uuid.js
+++ b/packages/insomnia-app/flow-typed/uuid.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'uuid' {
   declare module.exports: {
     v4: () => string,
diff --git a/packages/insomnia-app/flow-typed/xmldom.js b/packages/insomnia-app/flow-typed/xmldom.js
index d452f70322..a13a330977 100644
--- a/packages/insomnia-app/flow-typed/xmldom.js
+++ b/packages/insomnia-app/flow-typed/xmldom.js
@@ -1,3 +1,5 @@
+// @flow
+
 declare module 'xmldom' {
   declare module.exports: {
     DOMParser: Function