diff --git a/pkgs/development/python-modules/dbus/default.nix b/pkgs/development/python-modules/dbus/default.nix
index 23fcf511187ec..599c911b9990d 100644
--- a/pkgs/development/python-modules/dbus/default.nix
+++ b/pkgs/development/python-modules/dbus/default.nix
@@ -23,6 +23,10 @@ buildPythonPackage rec {
     MACOSX_DEPLOYMENT_TARGET=10.16
   '' else null;
 
+  configureFlags = [
+    "PYTHON_VERSION=${lib.versions.major python.version}"
+  ];
+
   nativeBuildInputs = [ pkg-config ];
   buildInputs = [ dbus dbus-glib ]
     # My guess why it's sometimes trying to -lncurses.