diff --git a/admin-core/src/main/java/com/ibeetl/admin/core/service/CoreBaseService.java b/admin-core/src/main/java/com/ibeetl/admin/core/service/CoreBaseService.java
index c3227820..1047900b 100644
--- a/admin-core/src/main/java/com/ibeetl/admin/core/service/CoreBaseService.java
+++ b/admin-core/src/main/java/com/ibeetl/admin/core/service/CoreBaseService.java
@@ -206,7 +206,7 @@ public class CoreBaseService<T> {
 
     public boolean deleteById(Long id) {
 
-        Map map = new HashMap();
+        Map map = new HashMap(2);
         // always id,delFlag for pojo
         map.put("id", id);
         map.put("delFlag", DelFlagEnum.DELETED.getValue());