diff --git a/testing/btest/Baseline/coverage.test-all-policy-cluster/.stderr b/testing/btest/Baseline/coverage.test-all-policy-cluster/.stderr
index 49d861c74c..bff9a64e41 100644
--- a/testing/btest/Baseline/coverage.test-all-policy-cluster/.stderr
+++ b/testing/btest/Baseline/coverage.test-all-policy-cluster/.stderr
@@ -1 +1,5 @@
 ### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
+received termination signal
+received termination signal
+received termination signal
+received termination signal
diff --git a/testing/btest/coverage/test-all-policy-cluster.test b/testing/btest/coverage/test-all-policy-cluster.test
index dc5e14e385..6aab29a1e7 100644
--- a/testing/btest/coverage/test-all-policy-cluster.test
+++ b/testing/btest/coverage/test-all-policy-cluster.test
@@ -16,6 +16,10 @@
 
 @load test-all-policy
 
+# Flip this to broker to avoid warnings() due Broker::publish()
+# calls in some scripts.
+redef Cluster::backend = Cluster::CLUSTER_BACKEND_BROKER;
+
 @TEST-START-FILE cluster-layout.zeek
 redef Cluster::nodes = {
 	["manager"]  = [$node_type=Cluster::MANAGER, $ip=127.0.0.1, $p=to_port(getenv("BROKER_PORT1"))],