1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/flask-mail/default.nix b/nixpkgs/pkgs/development/python-modules/flask-mail/default.nix
index 8e4c58db75c1..16e02683495f 100644
--- a/nixpkgs/pkgs/development/python-modules/flask-mail/default.nix
+++ b/nixpkgs/pkgs/development/python-modules/flask-mail/default.nix
@@ -5,6 +5,7 @@
 buildPythonPackage rec {
   pname = "flask-mail";
   version = "0.9.1";
+  format = "setuptools";
 
   meta = {
     description = "Flask-Mail is a Flask extension providing simple email sending capabilities.";