diff --git a/common/src/types.ts b/common/src/types.ts
index 0baf389e4..2d13f7813 100644
--- a/common/src/types.ts
+++ b/common/src/types.ts
@@ -642,7 +642,7 @@ export interface UserGameStats<I extends IDStrings = IDStrings> extends MongoDBD
     playtype: IDStringToPlaytype[I];
     rating: number;
     lampRating: number;
-    customRatings: Record<GameSpecificCalcLookup[I], number>;
+    customRatings: Partial<Record<GameSpecificCalcLookup[I], number>>;
     classes: Record<string, string>; // bad
 }