diff --git a/cleanup.sh b/cleanup.sh
index f1d32a4..bdc3316 100755
--- a/cleanup.sh
+++ b/cleanup.sh
@@ -10,4 +10,4 @@ echo "Reading permissions from $_tmp_file"
 PERM=$(stat -c "%u:%g" "${INPUT_PROJECTBASEDIR%/}/$_tmp_file")
 
 echo "Applying permissions $PERM to all files in the project base directory"
-chown -R $PERM "${INPUT_PROJECTBASEDIR%/}/"
\ No newline at end of file
+chown -R "$PERM" "${INPUT_PROJECTBASEDIR%/}/"