diff --git a/templates/gitlab-ci-golang.yml b/templates/gitlab-ci-golang.yml
index 49768c4404411a89cdce130c84eb7296bd85bc89..7f27199756df849d6cbb29d2219655aaf1fdc2cb 100644
--- a/templates/gitlab-ci-golang.yml
+++ b/templates/gitlab-ci-golang.yml
@@ -512,7 +512,7 @@ go-test:
       - "$GO_PROJECT_DIR/reports/go-coverage.*"
   rules:
     # if $GO_TEST_IMAGE set
-    - if: '$GO_TEST_IMAGE == null'
+    - if: '$GO_TEST_IMAGE == ""'
       when: never
     - !reference [.test-policy, rules]
 
@@ -540,7 +540,7 @@ go-build-test:
       - "$GO_PROJECT_DIR/reports/go-coverage.*"
   rules:
     # if $GO_TEST_IMAGE not set
-    - if: '$GO_TEST_IMAGE == null'
+    - if: '$GO_TEST_IMAGE == ""'
 
 go-ci-lint:
   extends: .go-base