diff --git a/.gitea/workflows/base-build.yml b/.gitea/workflows/base-build.yml
index 74cee03..c2b7292 100644
--- a/.gitea/workflows/base-build.yml
+++ b/.gitea/workflows/base-build.yml
@@ -43,6 +43,7 @@ jobs:
 
             docker run --rm --privileged \
               -v "$(pwd)":/output \
+              -e DEBIAN_RELEASE=$version \
               fithwum/debian-$version-base \
               bash -euxc "
                 DEBIAN_RELEASE='$version'