diff --git a/tools/serving_build.sh b/tools/serving_build.sh
index 5934cbca883bd6a40369bd0875b2789ceb8a4d1f..b613701110ee7f2ddb123bf611e2174b18d69346 100644
--- a/tools/serving_build.sh
+++ b/tools/serving_build.sh
@@ -47,7 +47,7 @@ function rerun() {
     done
     exit 1
 }
-
+ 
 function build_app() {
     local TYPE=$1
     local DIRNAME=build-app-$TYPE