diff --git a/frontends/etiquette_flask/etiquette_flask/endpoints/user_endpoints.py b/frontends/etiquette_flask/etiquette_flask/endpoints/user_endpoints.py
index e879567..d956c7d 100644
--- a/frontends/etiquette_flask/etiquette_flask/endpoints/user_endpoints.py
+++ b/frontends/etiquette_flask/etiquette_flask/endpoints/user_endpoints.py
@@ -45,7 +45,13 @@ def get_user_id_redirect(user_id):
 @session_manager.give_token
 def get_login():
     session = session_manager.get(request)
-    return flask.render_template('login.html', session=session)
+    response = flask.render_template(
+        'login.html',
+        session=session,
+        min_username_length=common.P.config['user']['min_length'],
+        min_password_length=common.P.config['user']['min_password_length'],
+    )
+    return response
 
 @site.route('/login', methods=['POST'])
 @session_manager.give_token
diff --git a/frontends/etiquette_flask/templates/login.html b/frontends/etiquette_flask/templates/login.html
index 4669b46..f63f245 100644
--- a/frontends/etiquette_flask/templates/login.html
+++ b/frontends/etiquette_flask/templates/login.html
@@ -85,8 +85,8 @@ button
             </div>
             <div id="register_form" action="/register" method="post">
                 <span>Register</span>
-                <input type="text" id="register_input_username" name="username" placeholder="username">
-                <input type="password" id="register_input_password_1" name="password_1" placeholder="password">
+                <input type="text" id="register_input_username" name="username" placeholder="username (at least {{min_username_length}})">
+                <input type="password" id="register_input_password_1" name="password_1" placeholder="password (at least {{min_password_length}})">
                 <input type="password" id="register_input_password_2" name="password_2" placeholder="password again">
                 <button type="submit" id="register_input_button" onclick="submit_register()">Register</button>
             </div>