diff --git a/src/main/resources/mapper/IrKnowledgeMapper.xml b/src/main/resources/mapper/IrKnowledgeMapper.xml
index 8964b3c..a64ced0 100644
--- a/src/main/resources/mapper/IrKnowledgeMapper.xml
+++ b/src/main/resources/mapper/IrKnowledgeMapper.xml
@@ -6,7 +6,6 @@
 
     <resultMap id="BaseResultMap" type="com.supervision.domain.IrKnowledge">
             <id property="id" column="id" jdbcType="VARCHAR"/>
-            <result property="questionCode" column="question_code" jdbcType="INTEGER"/>
             <result property="standardQuestion" column="standard_question" jdbcType="VARCHAR"/>
             <result property="state" column="state" jdbcType="INTEGER"/>
             <result property="sqlTemplate" column="sql_template" jdbcType="VARCHAR"/>