diff --git a/src/remote.c b/src/remote.c
index 2f4b88..dcabaf 100644
--- a/src/remote.c
+++ b/src/remote.c
@@ -465,7 +465,7 @@ static void gr_new_window(const gchar *text, GIOChannel *channel, gpointer data)
 	layout_set_path(lw_id, pwd);
 }
 
-static gboolean gr_close_window_cb()
+static gboolean gr_close_window_cb(void *)
 {
 	if (!layout_valid(&lw_id)) return FALSE;