diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c4622530ca..af63b673ed 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -48,7 +48,7 @@ variables:
     else
         git remote add upstream https://gitlab.com/fdroid/fdroiddata.git || true
         git fetch upstream ${CI_DEFAULT_BRANCH}
-        export TARGET_REF=$(git merge-base --fork-point upstream/${CI_DEFAULT_BRANCH})
+        export TARGET_REF=$(git merge-base HEAD upstream/${CI_DEFAULT_BRANCH})
         export SOURCE_REF="${CI_COMMIT_SHA}"
     fi;