diff --git a/src/new_build.sh b/src/new_build.sh
index 4a4d43ae..781a36ce 100755
--- a/src/new_build.sh
+++ b/src/new_build.sh
@@ -160,7 +160,8 @@ fi
 branch_dir=${branch//[^[:alnum:]]/_}
 branch_dir=${branch_dir^^}
 
-mkdir -p "$SRC_DIR/$branch_dir"
+source_dir="$SRC_DIR/$branch_dir"
+mkdir -p "$source_dir"
 cd "$SRC_DIR/$branch_dir"
 
 if [ -n "$branch" ] && [ -n "$devices" ]; then