diff --git a/.github/workflows/check.yaml b/.github/workflows/check.yaml
index 2ee73327..3e5a42ef 100644
--- a/.github/workflows/check.yaml
+++ b/.github/workflows/check.yaml
@@ -183,5 +183,7 @@ jobs:
         uses: actions/download-artifact@v4
         with:
           name: charmed-openstack-upgrader_arm64.snap
+      - name: Set Juju model constraints for arch
+        run: juju set-model-constraints arch=arm64
       - name: Run func tests
         run: TEST_SNAP=$GITHUB_WORKSPACE/charmed-openstack-upgrader_arm64.snap tox -e func