diff --git a/.gitea/workflows/base-build.yml b/.gitea/workflows/base-build.yml
index c2b7292..3ab659a 100644
--- a/.gitea/workflows/base-build.yml
+++ b/.gitea/workflows/base-build.yml
@@ -43,10 +43,9 @@ jobs:
 
             docker run --rm --privileged \
               -v "$(pwd)":/output \
-              -e DEBIAN_RELEASE=$version \
+              --env DEBIAN_RELEASE="$version" \
               fithwum/debian-$version-base \
-              bash -euxc "
-                DEBIAN_RELEASE='$version'
+              bash -euxc '
                 ROOTFS_DIR='debian-${version}'
 
                 echo '[INFO] Bootstrapping Debian $DEBIAN_RELEASE rootfs...'
@@ -83,7 +82,7 @@ jobs:
                 TARBALL="/output/$DEBIAN_RELEASE/debian-${DEBIAN_RELEASE}.tar.bz2"
                 tar -cjf "$TARBALL" -C "$ROOTFS_DIR" .
                 echo '[INFO] Tarball ready for CI to upload: \$TARBALL'
-              "
+              '
             done
 
       - name: List output archives