diff --git a/tests/distro-regression/tests/bundles/jammy-caracal.yaml b/tests/distro-regression/tests/bundles/jammy-caracal.yaml
index 35728fe7..b4068b96 100644
--- a/tests/distro-regression/tests/bundles/jammy-caracal.yaml
+++ b/tests/distro-regression/tests/bundles/jammy-caracal.yaml
@@ -199,6 +199,8 @@ applications:
   ovn-chassis:
     charm: ch:ovn-chassis
     channel: *ovn-channel
+    options:
+      prefer-chassis-as-gw: true
   neutron-api:
     charm: ch:neutron-api
     num_units: 1
diff --git a/tests/distro-regression/tests/bundles/noble-caracal.yaml b/tests/distro-regression/tests/bundles/noble-caracal.yaml
index 52e20da4..e9ed68b4 100644
--- a/tests/distro-regression/tests/bundles/noble-caracal.yaml
+++ b/tests/distro-regression/tests/bundles/noble-caracal.yaml
@@ -202,6 +202,8 @@ applications:
   ovn-chassis:
     charm: ch:ovn-chassis
     channel: *ovn-channel
+    options:
+      prefer-chassis-as-gw: true
   neutron-api:
     charm: ch:neutron-api
     num_units: 1