diff --git a/src/shared/helper.ts b/src/shared/helper.ts
index 86c6271..70ef9b3 100644
--- a/src/shared/helper.ts
+++ b/src/shared/helper.ts
@@ -112,7 +112,7 @@ export async function ensureGroupMember(
 ) {
   const memberCheckRes = await prisma.groupMembership.findFirst({
     where: {
-      id: userId,
+      memberId: userId,
       groupId: groupId,
       membershipType: MemberShipType.USER,
     },