diff --git a/demo/package.json b/demo/package.json
index 34156e2cf..49a43c1fa 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -11,7 +11,7 @@
     "build:all:chrome-mv2": "wxt build --mv2",
     "build:all:firefox-mv3": "wxt build -b firefox --mv3",
     "build:all:firefox-mv2": "wxt build -b firefox",
-    "prepare": "pnpm -w build && wxt prepare"
+    "postinstall": "pnpm -w build && wxt prepare"
   },
   "dependencies": {
     "webextension-polyfill": "^0.10.0"
diff --git a/docs/get-started/installation.md b/docs/get-started/installation.md
index 9bb472e56..85b7765b7 100644
--- a/docs/get-started/installation.md
+++ b/docs/get-started/installation.md
@@ -92,7 +92,8 @@ Finally, add scripts to your `package.json`:
     "dev": "wxt", // [!code ++]
     "dev:firefox": "wxt --browser firefox", // [!code ++]
     "build": "wxt build", // [!code ++]
-    "build:firefox": "wxt build --browser firefox" // [!code ++]
+    "build:firefox": "wxt build --browser firefox", // [!code ++]
+    "postinstall": "wxt prepare" // [!code ++]
   }
 }
 ```
diff --git a/templates/react/package.json b/templates/react/package.json
index 5641057e6..bceddb08e 100644
--- a/templates/react/package.json
+++ b/templates/react/package.json
@@ -10,7 +10,7 @@
     "build": "wxt build",
     "build:firefox": "wxt build -b firefox",
     "compile": "tsc --noEmit",
-    "prepare": "wxt prepare"
+    "postinstall": "wxt prepare"
   },
   "dependencies": {
     "react": "^18.2.0",
diff --git a/templates/svelte/package.json b/templates/svelte/package.json
index 7c3ab9666..ccfc54ce7 100644
--- a/templates/svelte/package.json
+++ b/templates/svelte/package.json
@@ -9,7 +9,7 @@
     "build": "wxt build",
     "build:firefox": "wxt build -b firefox",
     "check": "svelte-check --tsconfig ./tsconfig.json",
-    "prepare": "wxt prepare"
+    "postinstall": "wxt prepare"
   },
   "devDependencies": {
     "@sveltejs/vite-plugin-svelte": "^2.4.2",
diff --git a/templates/vanilla/package.json b/templates/vanilla/package.json
index d28222ce9..acd31a775 100644
--- a/templates/vanilla/package.json
+++ b/templates/vanilla/package.json
@@ -10,7 +10,7 @@
     "build": "wxt build",
     "build:firefox": "wxt build -b firefox",
     "compile": "tsc --noEmit",
-    "prepare": "wxt prepare"
+    "postinstall": "wxt prepare"
   },
   "devDependencies": {
     "typescript": "^5.1.6",
diff --git a/templates/vue/package.json b/templates/vue/package.json
index 69cc4d3b9..ddb41aee1 100644
--- a/templates/vue/package.json
+++ b/templates/vue/package.json
@@ -10,7 +10,7 @@
     "build": "wxt build",
     "build:firefox": "wxt build -b firefox",
     "compile": "vue-tsc --noEmit",
-    "prepare": "wxt prepare"
+    "postinstall": "wxt prepare"
   },
   "dependencies": {
     "vue": "^3.3.4"