diff --git a/pkgs/development/python-modules/pdm-backend/default.nix b/pkgs/development/python-modules/pdm-backend/default.nix
index 64ad22dd1651..536b8a98a296 100644
--- a/pkgs/development/python-modules/pdm-backend/default.nix
+++ b/pkgs/development/python-modules/pdm-backend/default.nix
@@ -46,6 +46,7 @@ buildPythonPackage rec {
 
     # tests require a configured git identity
     export HOME=$TMPDIR
+    git config --global user.name nixbld
     git config --global user.email nixbld@localhost
   '';