diff --git a/common/src/types.ts b/common/src/types.ts
index 026c459f8..85e14a2e1 100644
--- a/common/src/types.ts
+++ b/common/src/types.ts
@@ -1219,7 +1219,7 @@ export interface PBScoreDocument<I extends IDStrings = IDStrings> extends MongoD
         lampIndex: integer;
         gradeIndex: integer;
         esd: number | null;
-        hitData: Partial<Record<JudgementLookup[I], integer>>;
+        hitData: Partial<Record<JudgementLookup[I], integer | null>>;
         hitMeta: Partial<HitMetaLookup[I]>;
     };
     calculatedData: {