diff --git a/code/__HELPERS/game.dm b/code/__HELPERS/game.dm
index 763c6136a9f..0beaff2a15a 100644
--- a/code/__HELPERS/game.dm
+++ b/code/__HELPERS/game.dm
@@ -182,7 +182,7 @@
 			hear += A
 
 		if(isobj(A) || ismob(A))
-			hear = recursive_mob_check(A, hear, 3, 1, 0, 1)
+			hear += recursive_mob_check(A, hear, 3, 1, 0, 1)
 
 	return hear