diff --git a/awesome.c b/awesome.c
index fd6bfff0f..98568bf6b 100644
--- a/awesome.c
+++ b/awesome.c
@@ -538,6 +538,7 @@ main(int argc, char **argv)
 
     /* we will receive events, stop grabbing server */
     xcb_ungrab_server(globalconf.connection);
+    xcb_flush(globalconf.connection);
 
     luaA_cs_init();