diff --git a/backend/src/utils/result.ts b/backend/src/utils/result.ts
index ddccc2fd3..b6dd0ad5a 100644
--- a/backend/src/utils/result.ts
+++ b/backend/src/utils/result.ts
@@ -55,6 +55,7 @@ export function buildDbResult(
   if (ce.incompleteTestSeconds === 0) delete res.incompleteTestSeconds;
   if (ce.afkDuration === 0) delete res.afkDuration;
   if (ce.tags.length === 0) delete res.tags;
+  if (ce.isPb === false) delete res.isPb;
 
   if (ce.keySpacingStats === undefined) delete res.keySpacingStats;
   if (ce.keyDurationStats === undefined) delete res.keyDurationStats;
diff --git a/shared-types/types.d.ts b/shared-types/types.d.ts
index fbf3e0649..d33aa42c0 100644
--- a/shared-types/types.d.ts
+++ b/shared-types/types.d.ts
@@ -219,6 +219,7 @@ declare namespace SharedTypes {
       | "incompleteTests"
       | "customText"
       | "quoteLength"
+      | "isPb"
     > & {
       correctChars?: number; // --------------
       incorrectChars?: number; // legacy results
@@ -239,6 +240,7 @@ declare namespace SharedTypes {
       tags?: string[];
       customText?: CustomText;
       quoteLength?: number;
+      isPb?: boolean;
     }
   >;