diff --git a/db_logic/module_relation.py b/db_logic/module_relation.py
index df8121c..e057635 100644
--- a/db_logic/module_relation.py
+++ b/db_logic/module_relation.py
@@ -90,6 +90,7 @@ class BllModuleRelation(Repository):
                 on b.object_id=a.role_id 
             LEFT JOIN rms_module as c 
                 on c.module_id=b.module_id
+                GROUP BY role_id
         """
         try:
             count_number = len(self.execute(sql_all).fetchall())