diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 2b3ee59..148cb48 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -126,7 +126,7 @@ test_fe:
     - docker:dind
   before_script:
     - docker login -u $DOCKER_USER -p $DOCKER_PW
-    - mkdir ./img
+    - mkdir -p ./img    # mkdir if not exists
   artifacts:
     paths:
       - /img/*