diff --git a/tests/pillar/control_cluster.sls b/tests/pillar/control_cluster.sls
index b5fc183..938a5bd 100644
--- a/tests/pillar/control_cluster.sls
+++ b/tests/pillar/control_cluster.sls
@@ -88,4 +88,15 @@
 apache:
   server:
     enabled: true
-    default_mpm: event
\ No newline at end of file
+    default_mpm: event
+    mpm:
+      prefork:
+        enabled: true
+        servers:
+          start: 5
+          spare:
+            min: 2
+            max: 10
+        max_requests: 0
+        max_clients: 20
+        limit: 20