diff --git a/app/Http/Controllers/Mobile/SupplyDemandController.php b/app/Http/Controllers/Mobile/SupplyDemandController.php
index 0320bb9..1e55652 100755
--- a/app/Http/Controllers/Mobile/SupplyDemandController.php
+++ b/app/Http/Controllers/Mobile/SupplyDemandController.php
@@ -247,7 +247,7 @@ class SupplyDemandController extends CommonController
         $messageToday = Message::where('user_id', $this->getUserId())
             ->where('created_at', 'like', '%' . date('Y-m-d') . '%')
             ->get();
-        if ($messageToday > $message_limit) {
+        if ($messageToday->count() > $message_limit) {
             return $this->fail([ResponseCode::ERROR_BUSINESS, '今天私信次数已达上限']);
         }
         // 有且仅有自己发的信息，则不能发再