diff --git a/src/main/resources/mybatis/monitor/SysOperLogMapper.xml b/src/main/resources/mybatis/monitor/SysOperLogMapper.xml
index aba1db3..b6827e9 100644
--- a/src/main/resources/mybatis/monitor/SysOperLogMapper.xml
+++ b/src/main/resources/mybatis/monitor/SysOperLogMapper.xml
@@ -75,7 +75,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 			<if test="title != null and title != ''">
 				AND title like concat(concat('%',#{title}),'%')
 			</if>
-			<if test="businessType != null and businessType != ''">
+			<if test="businessType != null">
 				AND business_type = #{businessType}
 			</if>
 			<if test="businessTypes != null and businessTypes.length > 0">