diff --git a/src/main/java/winstone/HostConfiguration.java b/src/main/java/winstone/HostConfiguration.java
index 51d8bbb1..31caca7b 100644
--- a/src/main/java/winstone/HostConfiguration.java
+++ b/src/main/java/winstone/HostConfiguration.java
@@ -182,6 +182,7 @@ public void postConfigure() throws Exception {
                 getSessionHandler().getSessionCache().setEvictionPolicy(sessionEviction);
             }
         };
+        wac.setServer(server);
         JettyWebSocketServletContainerInitializer.configure(wac, null);
         wac.getSecurityHandler().setLoginService(loginService);
         wac.setThrowUnavailableOnStartupException(