diff --git a/tests/pillar/apache_server.sls b/tests/pillar/apache_server.sls
index e6dab85..2a4ac0b 100644
--- a/tests/pillar/apache_server.sls
+++ b/tests/pillar/apache_server.sls
@@ -53,4 +53,21 @@
             - lists.example.com
             - mail01.example.com
             - mail01
-
+    mpm:
+      prefork:
+        enabled: true
+        servers:
+          start: 5
+          spare:
+            min: ${apache:server:mpm:prefork:servers:start}
+            max: 10
+          # Avoid memory leakage by restarting workers every x requests
+          max_requests: 0
+        # Should be 80% of server memory / average memory usage of one worker
+        max_clients: 150
+        # Should be same or more than max clients
+        limit: ${apache:server:mpm:prefork:max_clients}
+    event:
+      enabled: false
+    worker:
+      enabled: true