diff --git a/ci-operator/config/openshift/openshift-tests-private/openshift-openshift-tests-private-release-4.15__amd64-nightly-4.15-upgrade-from-stable-4.12.yaml b/ci-operator/config/openshift/openshift-tests-private/openshift-openshift-tests-private-release-4.15__amd64-nightly-4.15-upgrade-from-stable-4.12.yaml
index 1dab124c859d..6c1f8fd59c8a 100644
--- a/ci-operator/config/openshift/openshift-tests-private/openshift-openshift-tests-private-release-4.15__amd64-nightly-4.15-upgrade-from-stable-4.12.yaml
+++ b/ci-operator/config/openshift/openshift-tests-private/openshift-openshift-tests-private-release-4.15__amd64-nightly-4.15-upgrade-from-stable-4.12.yaml
@@ -99,6 +99,7 @@ tests:
       DEVSCRIPTS_CONFIG: |
         FIPS_MODE=true
         IP_STACK=v6
+        HOST_IP_STACK=v4v6
         MIRROR_IMAGES=true
         INSTALLER_PROXY=true
         NETWORK_TYPE=OVNKubernetes