diff --git a/functions/src/create-notification.ts b/functions/src/create-notification.ts
index 1c251e33..7601789e 100644
--- a/functions/src/create-notification.ts
+++ b/functions/src/create-notification.ts
@@ -316,8 +316,8 @@ export const createCommentOrAnswerOrUpdatedContractNotification = async (
         await sendMarketResolutionEmail(
           reason,
           privateUser,
-          resolutionData.userInvestments[userId],
-          resolutionData.userPayouts[userId],
+          resolutionData.userInvestments[userId] ?? 0,
+          resolutionData.userPayouts[userId] ?? 0,
           sourceUser,
           resolutionData.creatorPayout,
           sourceContract,