diff --git a/backend/src/api.js b/backend/src/api.js
index 970fc7e..22436c5 100644
--- a/backend/src/api.js
+++ b/backend/src/api.js
@@ -24,7 +24,7 @@ router.get("/healthcheck", (req, res) => {
  * @swagger
  * /api/users:
  *   post:
- *     summary: Create a new user
+ *     summary: Create a new user or return old user if username already exists
  *     requestBody:
  *       required: true
  *       content:
@@ -34,12 +34,8 @@ router.get("/healthcheck", (req, res) => {
  *             properties:
  *               username:
  *                 type: string
- *               input_method:
- *                 type: integer
- *                 default: 0
  *             example:
  *               username: "john_doe"
- *               input_method: 1
  *     responses:
  *       201:
  *         description: User created
@@ -48,14 +44,15 @@ router.get("/healthcheck", (req, res) => {
  *             example:
  *               id: 1
  *               username: "john_doe"
- *               input_method: 1
  */
 router.post("/users", async (req, res) => {
+    const { username} = req.body;
+
     const [result] = await pool.query(
-        `INSERT INTO users (username, input_method) 
-         VALUES (?, ?)
+        `INSERT INTO users (username) 
+         VALUES (?)
          ON DUPLICATE KEY UPDATE id = LAST_INSERT_ID(id)`,
-        [username, input_method]
+        [username]
     );
 
     const [userRow] = await pool.query("SELECT * FROM users WHERE id = ?", [result.insertId]);
diff --git a/backend/src/db.js b/backend/src/db.js
index abba8da..8194299 100644
--- a/backend/src/db.js
+++ b/backend/src/db.js
@@ -23,8 +23,7 @@ const migrations = [
       await conn.query(`
         CREATE TABLE users (
           id INT PRIMARY KEY AUTO_INCREMENT,
-          username VARCHAR(32) UNIQUE,
-          input_method INT
+          username VARCHAR(32) UNIQUE
         )
       `);
 
@@ -33,7 +32,7 @@ const migrations = [
           id INT PRIMARY KEY AUTO_INCREMENT,
           winner INT,
           created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
-          FOREGIN KEY (winner) REFERENCES users(id)
+          FOREIGN KEY (winner) REFERENCES users(id)
         )
       `);