diff --git a/blockchain-server/blockchain-server-sysconf/src/main/resources/mapper/HelpCenterMapper.xml b/blockchain-server/blockchain-server-sysconf/src/main/resources/mapper/HelpCenterMapper.xml
index ca8026a..8ed5e56 100644
--- a/blockchain-server/blockchain-server-sysconf/src/main/resources/mapper/HelpCenterMapper.xml
+++ b/blockchain-server/blockchain-server-sysconf/src/main/resources/mapper/HelpCenterMapper.xml
@@ -16,7 +16,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         <result property="modifyTime"    column="modify_time"    />
     </resultMap>
 
-    <select id="selectHelpCenterForApp" parameterType="java.lang.Integer" resultMap="HelpCenterResult">
+    <select id="selectHelpCenterForApp" resultMap="HelpCenterResult">
         select id, title, url
         from conf_help_center
         where show_status = #{showStatus}