diff --git a/client/package.json b/client/package.json
index 507d2da0e..a353b4dfe 100644
--- a/client/package.json
+++ b/client/package.json
@@ -17,7 +17,7 @@
     "webpack": "webpack",
     "tslint": "tslint",
     "ng": "ng",
-    "postinstall": "npm rebuild node-sass && node angular-cli-patch.js",
+    "postinstall": "npm rebuild node-sass && test -f angular-cli-patch.js && node angular-cli-patch.js || true",
     "webpack-bundle-analyzer": "webpack-bundle-analyzer",
     "webdriver-manager": "webdriver-manager"
   },