--- src/sfx/core.c.orig	2008-05-03 05:20:50.000000000 +1000
+++ src/sfx/core.c	2014-02-10 19:58:35.000000000 +1100
@@ -913,7 +913,7 @@ sfx_send_midi(sfx_state_t *self, song_ha
 		break;
 	default:
 		sciprintf("Unexpected explicit MIDI command %02x\n", command);
-		return;
+		return SFX_ERROR;
 	}
 
 	if (tell)