diff --git a/proton b/proton
index 8495e6b1..88aedd62 100755
--- a/proton
+++ b/proton
@@ -1072,6 +1072,7 @@ def default_compat_config():
         if appid in [
                 "202990", #Call of Duty: Black Ops II - Multiplayer
                 "212910", #Call of Duty: Black Ops II - Zombies
+                "499100", #Dark Parables: The Exiled Prince Collector's Edition (499100)
                 ]:
             ret.add("heapdelayfree")