diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index fa5dafdb21..f8711f299e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -173,7 +173,7 @@ amd64:
   script: &release
     - mix deps.get --only prod
     - mkdir release
-    - PLEROMA_BUILD_BRANCH=$CI_COMMIT_REF_NAME
+    - export PLEROMA_BUILD_BRANCH=$CI_COMMIT_REF_NAME
     - mix release --path release