diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 674d1615bb37e052b93d3845394a37332c1232a3..06e00ee9ac0bbb140092ee78ad64c1902229e78a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -20,7 +20,7 @@ stages:
 Build pythonForPandocFilter docker image:
   stage: build
   before_script: cd generateChangemarks
-  script: docker build --tag generatechangemarks:${CI_COMMIT_BRANCH} -f dockerfile .
+  script: docker build --tag "generatechangemarks:${CI_COMMIT_BRANCH}" -f dockerfile .
   rules:
     - if: $CI_COMMIT_BRANCH
       changes: