diff --git a/package.json b/package.json
index 96fed05..4c7aaad 100644
--- a/package.json
+++ b/package.json
@@ -4,20 +4,20 @@
     "bugs": "https://github.com/hensm/fx_cast",
     "scripts": {
         "postinstall": "npm run postinstall:app && npm run postinstall:ext",
-        "postinstall:app": "npm install ./app --prefix ./app",
-        "postinstall:ext": "npm install ./ext --prefix ./ext",
+        "postinstall:app": "cd app && npm install",
+        "postinstall:ext": "cd ext && npm install",
         "build": "npm run build:app && npm run build:ext",
-        "build:app": "npm run build --prefix ./app",
-        "build:ext": "npm run build --prefix ./ext",
+        "build:app": "cd app && npm run build",
+        "build:ext": "cd ext &&npm run build",
         "package": "npm run package:app && npm run package:ext",
-        "package:app": "npm run package --prefix ./app",
-        "package:ext": "npm run package --prefix ./ext",
+        "package:app": "cd app && npm run package",
+        "package:ext": "cd ext && npm run package",
         "test": "node test/driver.js",
-        "install-manifest": "npm run install-manifest --prefix ./app",
-        "remove-manifest": "npm run remove-manifest --prefix ./app",
+        "install-manifest": "cd app && npm run install-manifest",
+        "remove-manifest": "cd app && npm run remove-manifest",
         "lint": "npm run lint:app && npm run lint:ext",
-        "lint:app": "npm run lint --prefix ./app",
-        "lint:ext": "npm run lint --prefix ./ext"
+        "lint:app": "cd app && npm run lint",
+        "lint:ext": "cd ext && npm run lint"
     },
     "devDependencies": {
         "@types/minimist": "^1.2.0",