diff --git a/scripts/build_assets_image b/scripts/build_assets_image
index 218606b9a40..1d77524d503 100755
--- a/scripts/build_assets_image
+++ b/scripts/build_assets_image
@@ -15,7 +15,7 @@ ASSETS_IMAGE_PATH=${CI_REGISTRY}/${CI_PROJECT_PATH}/${ASSETS_IMAGE_NAME}
 mkdir -p assets_container.build/public
 cp -r public/assets assets_container.build/public/
 cp Dockerfile.assets assets_container.build/
-docker build -t ${ASSETS_IMAGE_PATH}:${CI_COMMIT_REF_NAME} -f assets_container.build/Dockerfile.assets assets_container.build/
+docker build -t ${ASSETS_IMAGE_PATH}:${CI_COMMIT_REF_SLUG} -f assets_container.build/Dockerfile.assets assets_container.build/
 docker login -u gitlab-ci-token -p ${CI_JOB_TOKEN} ${CI_REGISTRY}
 docker push ${ASSETS_IMAGE_PATH}