diff --git a/src/main/resources/mapper/course/CourseDetailsDao.xml b/src/main/resources/mapper/course/CourseDetailsDao.xml
index 3fb11fd5..784bb74d 100644
--- a/src/main/resources/mapper/course/CourseDetailsDao.xml
+++ b/src/main/resources/mapper/course/CourseDetailsDao.xml
@@ -54,9 +54,9 @@
 
 
     <select id="selectCourseDetailsList" resultType="com.sqx.modules.course.entity.CourseDetails">
-        select cd.*
-        from course_details cd
-        order by ORDER BY RAND();
+        select *
+        from course_details
+        ORDER BY RAND()
     </select>
 
     <select id="countCourse" resultType="Map">