diff --git a/app/app.py b/app/app.py
index 98f2e46..a7421dd 100644
--- a/app/app.py
+++ b/app/app.py
@@ -27,7 +27,10 @@ login_manager = LoginManager()
 login_manager.login_view = 'login'
 login_manager.init_app(app)
 
-signup_enabled = False
+if os.environ['SIGNUP_ENABLED'] == "YES":
+    signup_enabled = True
+else:
+    signup_enabled = False
 
 @login_manager.user_loader
 def load_user(user_id):