diff --git a/main.py b/main.py
index 9192c3a..2a26457 100644
--- a/main.py
+++ b/main.py
@@ -69,7 +69,7 @@ def list():
 @app.route("/list/user", methods=['GET'])
 def user_info():
     id = request.args.get("id")
-    c.execute(f"SELECT * FROM users WHERE id={id}")
+    c.execute(f"SELECT * FROM users WHERE id='{id}'")
     user_list = c.fetchall()
     if user_list != []:
         user = user_list[0]