diff --git a/dsl/build.sh b/dsl/build.sh
index 6c19c80..59a3808 100644
--- a/dsl/build.sh
+++ b/dsl/build.sh
@@ -58,6 +58,8 @@ pullCode() {
   fi
   echo -e "$echoPrefix git checkout $branch $echoSuffix"
   git checkout $branch
+  echo -e "$echoPrefix git checkout . $echoSuffix"
+  git checkout .
   echo -e "$echoPrefix git pull $echoSuffix"
   if [ "`git pull`" == "Already up-to-date." ] && [ $isChange == "1" ]; then
     isChange="0"