diff --git a/laws-modules/src/main/java/com/jero/modules/tag/service/impl/ILawsTagServiceImpl.java b/laws-modules/src/main/java/com/jero/modules/tag/service/impl/ILawsTagServiceImpl.java
index bebde388..21328716 100644
--- a/laws-modules/src/main/java/com/jero/modules/tag/service/impl/ILawsTagServiceImpl.java
+++ b/laws-modules/src/main/java/com/jero/modules/tag/service/impl/ILawsTagServiceImpl.java
@@ -207,9 +207,9 @@ public class ILawsTagServiceImpl extends ServiceImpl<LawsTagMapper, LawsTag> imp
 		String dbFieldNameOld = lawsTag.getDbFieldNameOld();
 		String sql;
 		if (StringUtils.isNotBlank(dbFieldNameOld)){
-			sql = "alter table " + tableName + " change " + dbFieldNameOld + " " + dbFieldName + " " + type + " null comment '"+dbFieldTxt+"'";
+			sql = "alter table " + tableName + " change `" + dbFieldNameOld + "` `" + dbFieldName + "` " + type + " null comment '"+dbFieldTxt+"'";
 		}else {
-			sql = "alter table " + tableName + " " + modifyOrAdd + " " + dbFieldName + " " + type + " null comment '"+dbFieldTxt+"'";
+			sql = "alter table " + tableName + " " + modifyOrAdd + " `" + dbFieldName + "` " + type + " null comment '"+dbFieldTxt+"'";
 		}
 
 		lawsTagMapper.executeDDL(sql);