diff --git a/db/migrate/20190314080805_create_shixun_student_works.rb b/db/migrate/20190314080805_create_shixun_student_works.rb
index 2861f22e..d40bb004 100644
--- a/db/migrate/20190314080805_create_shixun_student_works.rb
+++ b/db/migrate/20190314080805_create_shixun_student_works.rb
@@ -1,5 +1,5 @@
 # encoding: utf-8
-class MigrateShixunWorks1 < ActiveRecord::Migration
+class MigrateShixunWorks < ActiveRecord::Migration
   DCODES = %W(2 3 4 5 6 7 8 9 a b c f e f g h i j k l m n o p q r s t u v w x y z)
 
   def down_generate_identifier type