diff --git a/gdk/wayland/gdkeventsource.c b/gdk/wayland/gdkeventsource.c
index 619ee872c1..9dda53a1ff 100644
--- a/gdk/wayland/gdkeventsource.c
+++ b/gdk/wayland/gdkeventsource.c
@@ -50,6 +50,9 @@ gdk_event_source_prepare(GSource *base, gint *timeout)
     return TRUE;
 
   if (wl_display_flush (display->wl_display) < 0)
+    g_error ("Error flushing display: %s", g_strerror (errno));
+
+  if (wl_display_dispatch_pending (display->wl_display) < 0)
     g_error ("Error dispatching display: %s", g_strerror (errno));
 
   return FALSE;