diff --git a/source/games/sw/src/ai.h b/source/games/sw/src/ai.h
index 5df57cebf..8f889affa 100644
--- a/source/games/sw/src/ai.h
+++ b/source/games/sw/src/ai.h
@@ -62,7 +62,8 @@ enum ActorStates { SLOW_SPEED, NORM_SPEED, MID_SPEED, FAST_SPEED, MAX_SPEED};
 
 enum ATTRIB_SNDS
 {
-    attr_ambient = 1, attr_alert, attr_attack, attr_pain, attr_die,
+    attr_none = 0,
+    attr_ambient, attr_alert, attr_attack, attr_pain, attr_die,
     attr_extra1, attr_extra2, attr_extra3,attr_extra4,attr_extra5,
     attr_extra6, MAXATTRIBSNDS
 };
diff --git a/source/games/sw/src/sounds.cpp b/source/games/sw/src/sounds.cpp
index 8f2e1684c..ecc23bcf1 100644
--- a/source/games/sw/src/sounds.cpp
+++ b/source/games/sw/src/sounds.cpp
@@ -718,7 +718,7 @@ void Terminate3DSounds(void)
 
 void PlaySpriteSound(DSWActor* actor, int attrib_ndx, int flags)
 {
-    if (actor->hasU())
+    if (actor->hasU() && attrib_ndx > attr_none && attrib_ndx < MAXATTRIBSNDS)
         PlaySound(actor->user.__legacyState.Attrib->Sounds[attrib_ndx - 1], actor, flags);
 }