diff --git a/app/services/memos_service.rb b/app/services/memos_service.rb
index 3f39993f2..82d5d69b1 100644
--- a/app/services/memos_service.rb
+++ b/app/services/memos_service.rb
@@ -112,7 +112,7 @@ class MemosService
 
   def batch_show_simple params, current_user
     memo_ids = params[:ids].split(",") rescue []
-    memos = Memo.where(memo_ids)
+    memos = Memo.where(id: memo_ids)
     
     memo_info = memos.map do |memo| 
         {id: memo.id,