diff --git a/Dockerfile b/Dockerfile
index f4451ae..16d801c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,5 +12,5 @@ COPY dist/onecx-theme-ui/ $DIR_HTML
 ENV BFF_URL http://onecx-theme-bff:8080/
 ENV APP_BASE_HREF /
 
-RUN chmod 775 -R $DIR_HTML/assets
+RUN chmod 775 -R "$DIR_HTML"/assets
 USER 1001