diff --git a/src/p_tick.c b/src/p_tick.c
index 939836719..d38d48433 100644
--- a/src/p_tick.c
+++ b/src/p_tick.c
@@ -672,7 +672,7 @@ void P_Ticker(boolean run)
 			{
 				S_StartSound(NULL, sfx_s3kad); // GO!
 			}
-			if (leveltime == (starttime + (TICRATE/2)))
+			else if (leveltime == (starttime + (TICRATE/2)))
 			{
 				S_ChangeMusic(mapmusname, mapmusflags, true);
 				S_ShowMusicCredit();