diff --git a/gatchat/gatmux.c b/gatchat/gatmux.c
index 074e340a..0e275b53 100644
--- a/gatchat/gatmux.c
+++ b/gatchat/gatmux.c
@@ -618,7 +618,8 @@ gboolean g_at_mux_start(GAtMux *mux)
 
 	mux->read_watch = g_io_add_watch_full(mux->channel, G_PRIORITY_DEFAULT,
 				G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
-						received_data, mux, read_watcher_destroy_notify);
+						received_data, mux,
+						read_watcher_destroy_notify);
 
 	mux->shutdown = FALSE;