diff --git a/src/p_enemy.cpp b/src/p_enemy.cpp
index 6cf7d7be6..0961e8671 100644
--- a/src/p_enemy.cpp
+++ b/src/p_enemy.cpp
@@ -1868,7 +1868,8 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_LookEx)
 	{
 		if (!(flags & LOF_NOSOUNDCHECK))
 		{
-			targ = (self->flags & MF_NOSECTOR)? self->Sector->SoundTarget : self->LastHeard;
+			targ = (i_compatflags & COMPATF_SOUNDTARGET || self->flags & MF_NOSECTOR)?
+				self->Sector->SoundTarget : self->LastHeard;
 			if (targ != NULL)
 			{
 				// [RH] If the soundtarget is dead, don't chase it