diff -r 49bb6c8ceb2b -r bdec069d2239 src/server/daemon/httplistener.c
--- a/src/server/daemon/httplistener.c	Tue Jul 09 20:56:01 2013 +0200
+++ b/src/server/daemon/httplistener.c	Thu Jul 11 14:21:23 2013 +0200
@@ -251,6 +251,11 @@
 }
 
 void* acceptor_thread(Acceptor *acceptor) {
+    WS_ASSERT(acceptor);
+    WS_ASSERT(acceptor->listener);
+    WS_ASSERT(acceptor->listener->session_handler);
+    WS_ASSERT(acceptor->listener->session_handler->enqueue_connection);
+    
     HttpListener *listener = acceptor->listener;
 
     for (;;) {