diff --git a/pkgs/development/python-modules/oslo-config/default.nix b/pkgs/development/python-modules/oslo-config/default.nix
index 72b034405ceb..793776d399ff 100644
--- a/pkgs/development/python-modules/oslo-config/default.nix
+++ b/pkgs/development/python-modules/oslo-config/default.nix
@@ -20,7 +20,7 @@ buildPythonPackage rec {
   pyproject = true;
 
   src = fetchPypi {
-    pname = "oslo.config";
+    pname = "oslo_config";
     inherit version;
     hash = "sha256-VVizS8wrUvIgjoD8rZVaT3ssQbskW2RR1DpiGtEmO70=";
   };