diff --git a/{{cookiecutter.project_slug}}/{{cookiecutter.project_slug}}/users/forms.py b/{{cookiecutter.project_slug}}/{{cookiecutter.project_slug}}/users/forms.py
index 1a61726a1..34adfae8a 100644
--- a/{{cookiecutter.project_slug}}/{{cookiecutter.project_slug}}/users/forms.py
+++ b/{{cookiecutter.project_slug}}/{{cookiecutter.project_slug}}/users/forms.py
@@ -30,7 +30,7 @@ class UserAdminCreationForm(admin_forms.UserCreationForm):
         fields = ("email",)
         field_classes = {"email": EmailField}
         error_messages = {
-            "username": {"unique": _("This email has already been taken.")}
+            "email": {"unique": _("This email has already been taken.")}
         }
         {%- else %}
         error_messages = {