diff --git a/proton b/proton
index cbc500bd..d9304fdb 100755
--- a/proton
+++ b/proton
@@ -1301,6 +1301,7 @@ def default_compat_config():
 
         if appid in [
                 "71230", #Crazy Taxi
+                "3328910", #MySims Kingdom
                 ]:
             ret.add("heaptopdown")