diff --git a/scripts/hooks/post-checkout b/scripts/hooks/post-checkout
old mode 100644
new mode 100755
index 28a583794d9..36f5df5e921
--- a/scripts/hooks/post-checkout
+++ b/scripts/hooks/post-checkout
@@ -1,2 +1,2 @@
-#!/bin/sh
-npm run gulp -- generate-diagnostics
\ No newline at end of file
+#!/bin/sh
+npm run gulp -- generate-diagnostics