diff --git a/admin/generate-dev-bundle.sh b/admin/generate-dev-bundle.sh
index a707603257..565e53a9ec 100755
--- a/admin/generate-dev-bundle.sh
+++ b/admin/generate-dev-bundle.sh
@@ -47,6 +47,8 @@ trap 'rm -rf "$DIR" >/dev/null 2>&1' 0
 echo BUILDING IN "$DIR"
 
 cd "$DIR"
+chmod 755 .
+umask 022
 mkdir build
 cd build