diff --git a/tests/integration/fixtures/runtime_stats.yaml b/tests/integration/fixtures/runtime_stats.yaml
index aad1c275fb..fd34cdb939 100644
--- a/tests/integration/fixtures/runtime_stats.yaml
+++ b/tests/integration/fixtures/runtime_stats.yaml
@@ -32,6 +32,7 @@ switch:
     name: "Test Switch"
     id: test_switch
     optimistic: true
+    lambda: return false;
 
 interval:
   - interval: 0.5s