diff --git a/models/user.ts b/models/user.ts
index b320c10..48a4c58 100644
--- a/models/user.ts
+++ b/models/user.ts
@@ -46,10 +46,10 @@ export default class User extends Model {
   @TypeORM.Column({ nullable: true, type: "boolean" })
   is_show: boolean;
 
-  @TypeORM.Column({ nullable: true, type: "boolean" })
+  @TypeORM.Column({ nullable: true, type: "boolean", default: true })
   public_email: boolean;
 
-  @TypeORM.Column({ nullable: true, type: "boolean" })
+  @TypeORM.Column({ nullable: true, type: "boolean", default: true })
   prefer_formatted_code: boolean;
 
   @TypeORM.Column({ nullable: true, type: "integer" })
diff --git a/modules/api.js b/modules/api.js
index 2d3c5df..13ebee6 100644
--- a/modules/api.js
+++ b/modules/api.js
@@ -111,11 +111,9 @@ app.post('/api/sign_up', async (req, res) => {
         username: req.body.username,
         password: req.body.password,
         email: req.body.email,
-        public_email: true,
         is_show: syzoj.config.default.user.show,
         rating: syzoj.config.default.user.rating,
-        register_time: parseInt((new Date()).getTime() / 1000),
-        prefer_formatted_code: true
+        register_time: parseInt((new Date()).getTime() / 1000)
       });
       await user.save();
 
@@ -200,11 +198,9 @@ app.get('/api/sign_up_confirm', async (req, res) => {
       username: obj.username,
       password: obj.password,
       email: obj.email,
-      public_email: true,
       is_show: syzoj.config.default.user.show,
       rating: syzoj.config.default.user.rating,
-      register_time: parseInt((new Date()).getTime() / 1000),
-      prefer_formatted_code: true
+      register_time: parseInt((new Date()).getTime() / 1000)
     });
     await user.save();