diff --git a/pkgs/development/python-modules/mechanize/default.nix b/pkgs/development/python-modules/mechanize/default.nix
index 8e5d147d303a..390f2955493b 100644
--- a/pkgs/development/python-modules/mechanize/default.nix
+++ b/pkgs/development/python-modules/mechanize/default.nix
@@ -21,7 +21,7 @@ buildPythonPackage rec {
     description = "Stateful programmatic web browsing in Python";
     homepage = "https://github.com/python-mechanize/mechanize";
     changelog = "https://github.com/python-mechanize/mechanize/blob/v${version}/ChangeLog";
-    license = "BSD-style";
+    license = licenses.bsd3;
     maintainers = with maintainers; [ ];
   };
 }