diff --git a/apps/canvas/back/package.json b/apps/canvas/back/package.json
index 2c9c432..4b35d41 100644
--- a/apps/canvas/back/package.json
+++ b/apps/canvas/back/package.json
@@ -6,7 +6,7 @@
   "type": "commonjs",
   "scripts": {
     "build": "tsc",
-    "format": "prettier --write src/**/*.{js,ts,jsx,tsx}",
+    "format": "prettier --write src/**/*.{js,ts,jsx,tsx} --list-different",
     "format-check": "prettier --check src/**/*.{js,ts,jsx,tsx}",
     "lint": "eslint .",
     "start": "node dist/index.js"