diff --git a/examples/calculator/README.md b/examples/calculator/README.md
index 3c67c6d0d..323d36dbd 100644
--- a/examples/calculator/README.md
+++ b/examples/calculator/README.md
@@ -1,7 +1,13 @@
 # Calculator app
 
-This example showcases how to build a basic mac calculator clone.
+This example showcases how to build a basic calculator clone.
 
-The app should look like this:
+**Screenshot:**
 
 ![demo](https://github.com/master-atul/node-native-ui/raw/master/examples/calculator/calculator.png "Calculator screenshot")
+
+To run the demo:
+
+1. `yarn build`
+
+2. `yarn qode dist/examples/calculator/index.js`
diff --git a/examples/calculator/calculator.png b/examples/calculator/calculator.png
index c3e146d89..9e19e6dc7 100644
Binary files a/examples/calculator/calculator.png and b/examples/calculator/calculator.png differ
diff --git a/package.json b/package.json
index 8acab85f6..f0628aabf 100644
--- a/package.json
+++ b/package.json
@@ -15,14 +15,13 @@
     "typescript": "^3.4.5"
   },
   "scripts": {
-    "build": "npm run build:addon&&npm run build:lib",
+    "build": "npm run rebuild:addon && npm run build:lib",
     "build:lib": "tsc",
     "build:addon": "node-gyp -j 8 build",
     "rebuild:addon": "node-gyp -j 8 rebuild",
     "clean": "rm -rf ./dist ./build",
     "automoc": "node ./scripts/automoc.js",
-    "dev": "tsc && qode dist/demo.js",
-    "demo": "tsc && qode dist/examples/calculator/index.js"
+    "dev": "tsc && qode dist/demo.js"
   },
   "dependencies": {
     "bindings": "^1.5.0",