diff --git a/app/api/logic/BusinessSchoolLogic.php b/app/api/logic/BusinessSchoolLogic.php
index 95106e92..11f83706 100644
--- a/app/api/logic/BusinessSchoolLogic.php
+++ b/app/api/logic/BusinessSchoolLogic.php
@@ -44,7 +44,7 @@ class BusinessSchoolLogic extends Logic
 
             $model = new BusinessSchool();
 
-            $count = $model->alias('a')->join('article_category c', 'c.id = a.cid')->where($where)->count();
+            $count = $model->alias('a')->join('business_school_category c', 'c.id = a.cid')->where($where)->count();
 
             $list =  $model->alias('a')
                 ->join('business_school_category c', 'c.id = a.cid')