diff --git a/modules/openapi-generator/src/main/resources/typescript-angular/package.mustache b/modules/openapi-generator/src/main/resources/typescript-angular/package.mustache
index 22f7cd144d31..6e55fb330f77 100644
--- a/modules/openapi-generator/src/main/resources/typescript-angular/package.mustache
+++ b/modules/openapi-generator/src/main/resources/typescript-angular/package.mustache
@@ -13,6 +13,7 @@
   ],
   "license": "Unlicense",
   "scripts": {
+    "prepare": "npm run build",
     "build": "ng-packagr -p ng-package.json"
   },
   "peerDependencies": {