diff --git a/backend/src/modules/ratings/rating-aggregate.service.ts b/backend/src/modules/ratings/rating-aggregate.service.ts
index a4a41d9..48e49d1 100644
--- a/backend/src/modules/ratings/rating-aggregate.service.ts
+++ b/backend/src/modules/ratings/rating-aggregate.service.ts
@@ -55,15 +55,16 @@ export class RatingAggregateService {
     const k = this.key(tenantId, target, targetId);
     await this.seed(tenantId, target, targetId, k);
 
-    const [sumRes, countRes] = await this.redis
+    // exec() قد يرجع null (انقطاع/إجهاض المعاملة) — لذلك لا نفكّكه مباشرة.
+    const res = await this.redis
       .multi()
       .hincrbyfloat(k, 'sum', stars)
       .hincrby(k, 'count', 1)
       .expire(k, AGG_TTL_SEC)
       .exec();
 
-    const sum = Number(sumRes?.[1] ?? 0);
-    const count = Number(countRes?.[1] ?? 0);
+    const sum = Number(res?.[0]?.[1] ?? 0);
+    const count = Number(res?.[1]?.[1] ?? 0);
     const avg = count > 0 ? sum / count : 0;
 
     return { avg, count, shouldFlush: await this.claimDailyFlush(k) };