diff --git a/sc2/ChangeLog b/sc2/ChangeLog
index 9ef396b2d..6bddd1fc5 100644
--- a/sc2/ChangeLog
+++ b/sc2/ChangeLog
@@ -1,4 +1,5 @@
 Changes towards version 0.7:
+- Fixed a crash when conversing with music disabled - Michael
 - Moved all resources into starcon.ls2 - Michael
 - Fixed compile errors when compiling without joystick support - Michael
 - Added endian-aware integer read functions to uio - SvdB
diff --git a/sc2/src/sc2code/libs/sound/trackplayer.c b/sc2/src/sc2code/libs/sound/trackplayer.c
index 6c40014fe..953bb039e 100644
--- a/sc2/src/sc2code/libs/sound/trackplayer.c
+++ b/sc2/src/sc2code/libs/sound/trackplayer.c
@@ -850,7 +850,7 @@ GetSoundData (void *data)
 
 			// Using step of 1 sample at 11025Hz, because the human speech
 			// is mostly in the low frequencies
-			step = soundSource[MUSIC_SOURCE].sample->decoder->frequency * 2 / 11025;
+			step = soundSource[SPEECH_SOURCE].sample->decoder->frequency * 2 / 11025;
 			step = (step + 1) & ~1;
 
 			if (delta < 0)