diff --git a/main.py b/main.py
index 11b3da7..9ec73b8 100644
--- a/main.py
+++ b/main.py
@@ -59,7 +59,7 @@ def list():
 @app.route("/list/user", methods=['GET'])
 def user_info():
     username = request.args.get("user")
-    c.execute("SELECT * FROM users WHERE username = %(username)s", {'username': username})
+    c.execute("SELECT * FROM users WHERE username = ?", username)
     user_list = c.fetchall()
     if user_list != []:
         user = user_list[0]