diff --git a/web/src/main/java/com/ibeetl/jlw/entity/TeacherOpenCourse.java b/web/src/main/java/com/ibeetl/jlw/entity/TeacherOpenCourse.java
index 463df807..9a1d44db 100644
--- a/web/src/main/java/com/ibeetl/jlw/entity/TeacherOpenCourse.java
+++ b/web/src/main/java/com/ibeetl/jlw/entity/TeacherOpenCourse.java
@@ -50,7 +50,7 @@ public class TeacherOpenCourse extends BaseEntity{
 
     private Integer teacherOpenCourseStatus ;
 
-    @FetchSql("select t.teacher_id, ta.teacher_name, teacher_open_course_merge_teacher_auth_code from teacher_open_course_merge_teacher t " +
+    @FetchSql("select t.teacher_id, ta.teacher_name, ta.teacher_sn, teacher_open_course_merge_teacher_auth_code from teacher_open_course_merge_teacher t " +
             "left join teacher ta on ta.teacher_id = t.teacher_id " +
             "where t.teacher_open_course_id = #teacherOpenCourseId# and t.teacher_open_course_merge_teacher_status = 1 " +
             "order by teacher_id limit 1 ")
@@ -71,6 +71,7 @@ public class TeacherOpenCourse extends BaseEntity{
     public static class MergeTeacherInfo {
         private Long teacherId;
         private String teacherName;
+        private String teacherSn;
         private String teacherOpenCourseMergeTeacherAuthCode;
     }
     @Setter