diff --git a/src/service/.gitlab-ci.yml b/src/service/.gitlab-ci.yml
index 6114a3399aa42ab87728cf1dbe18b353fbd6d905..ff96d3b2144ad7c2ec433ce1c017274e1515ae50 100644
--- a/src/service/.gitlab-ci.yml
+++ b/src/service/.gitlab-ci.yml
@@ -152,9 +152,10 @@ unit_test service:
     - docker logs pathcomp-backend
     - docker logs $IMAGE_NAME
 
-    # Mock QKD Nodes Deployment
+        # Mock QKD Nodes Deployment
     - echo "Starting stage: deploy_mock_nodes"
-    - for port in 11111 22222 33333; do
+    - |
+      for port in 11111 22222 33333; do
         if lsof -i:$port >/dev/null 2>&1; then
           echo "Freeing up port $port..."
           fuser -k $port/tcp