diff --git a/app/routes/customers.py b/app/routes/customers.py
index 72605e1..b3b3b1a 100644
--- a/app/routes/customers.py
+++ b/app/routes/customers.py
@@ -161,7 +161,7 @@ def create():
 
         flash(
             f'Customer account created for {full_name}. '
-            f'They can now log in with username '{username}'.',
+            f'They can now log in with username "{username}".',
             'success'
         )
         return redirect(url_for('customers.manage', customer_id=user.id))