diff --git a/lib/install.js b/lib/install.js
index 7627a71ed9..6e95a0b6d9 100644
--- a/lib/install.js
+++ b/lib/install.js
@@ -54,7 +54,12 @@ module.exports = function install (ctx, pkgSpec, modules, options) {
     // => ['babel-core@6.4.5', 'babylon@6.4.5', 'babel-runtime@5.8.35']
     keypath: (options && options.keypath || []),
 
-    // Full name of package => 'lodash@4.0.0'
+    // Full name of package as it should be put in the store. Aim to make
+    // this as friendly as possible as this will appear in stack traces.
+    // => 'lodash@4.0.0'
+    // => '@rstacruz!tap-spec@4.1.1'
+    // => 'rstacruz!pnpm.js@0a1b382da'
+    // => 'foobar@9a3b283ac'
     fullname: undefined,
 
     // Distribution data from resolve() => { shasum, tarball }