diff --git a/.changeset/hot-coins-carry.md b/.changeset/hot-coins-carry.md
new file mode 100644
index 0000000000..d8ca9233bc
--- /dev/null
+++ b/.changeset/hot-coins-carry.md
@@ -0,0 +1,5 @@
+---
+"@pnpm/plugin-commands-installation": patch
+---
+
+The add and install commands should accept setting the `modules-dir` setting.
diff --git a/packages/plugin-commands-installation/src/add.ts b/packages/plugin-commands-installation/src/add.ts
index b3d7cfb230..690167233f 100644
--- a/packages/plugin-commands-installation/src/add.ts
+++ b/packages/plugin-commands-installation/src/add.ts
@@ -27,6 +27,7 @@ export function rcOptionsTypes () {
     'lockfile-directory',
     'lockfile-only',
     'lockfile',
+    'modules-dir',
     'network-concurrency',
     'npmPath',
     'package-import-method',
diff --git a/packages/plugin-commands-installation/src/install.ts b/packages/plugin-commands-installation/src/install.ts
index e0ec9429a9..dd40d5c803 100644
--- a/packages/plugin-commands-installation/src/install.ts
+++ b/packages/plugin-commands-installation/src/install.ts
@@ -28,6 +28,7 @@ export function rcOptionsTypes () {
     'lockfile-directory',
     'lockfile-only',
     'lockfile',
+    'modules-dir',
     'network-concurrency',
     'package-import-method',
     'pnpmfile',