diff --git a/.forgejo/workflows/test-build.yaml b/.forgejo/workflows/test-build.yaml
index b33aefb..78cc47f 100644
--- a/.forgejo/workflows/test-build.yaml
+++ b/.forgejo/workflows/test-build.yaml
@@ -7,6 +7,9 @@ jobs:
     runs-on: x86_64
     container:
       image: alpine:3.20
+    env:
+      QUBES_REL: r4.2
+      DIST: alpine320
     steps:
       - name: Environment setup
         run: |
@@ -26,6 +29,8 @@ jobs:
           git clone https://github.com/QubesOS/qubes-linux-template-builder qubes-builder/qubes-src/linux-template-builder
           patch -d qubes-builder/qubes-src/linux-template-builder -p1 -i $GITHUB_WORKSPACE/.forgejo/patches/linux-template-builder_use-fuse.patch
           echo "%define _arch x86_64" >> qubes-builder/qubes-src/linux-template-builder/templates.spec
+          echo "4.2.0" > qubes-builder/qubes-src/linux-template-builder/version
+          sed "s|DISTS_VM :.*|DISTS_VM := $DIST|" -i ./qubes-builder/builder.conf
           cd qubes-builder
           make linux-template-builder
           cp qubes-src/linux-template-builder/rpm/noarch/qubes-template-*.rpm $GITHUB_WORKSPACE/.