diff --git a/gui.c b/gui.c
index c3864bc..a68cc36 100644
--- a/gui.c
+++ b/gui.c
@@ -176,7 +176,7 @@ int gui_main(Engine *engine)
         }
 
         /* update engine state */
-        current_beat = g_engine->transport.bar_position * 4 + g_engine->transport.beat_position;
+        current_beat = g_engine->transport->bar_position * 4 + g_engine->transport->beat_position;
 
         /* render GUI */
         gui_update();