diff --git a/build-mac-app.sh b/build-mac-app.sh
index 5f3b332..dbd1998 100644
--- a/build-mac-app.sh
+++ b/build-mac-app.sh
@@ -2,7 +2,7 @@
 
 set -xe
 
-mkdir Libs
+mkdir -p Libs
 
 cd Libs