diff --git a/python/default.nix b/python/default.nix
index 6eeed48128df..43410878636c 100644
--- a/python/default.nix
+++ b/python/default.nix
@@ -81,7 +81,7 @@ python.pkgs.buildPythonPackage {
     exampleEnv = python.withPackages (p: [ nix.python-bindings ]);
     tests = {
       example-buildPythonApplication = import ./examples/buildPythonApplication {
-        inherit nix system testScripts;
+        inherit nix system testScripts python;
       };
     };
     shell = mkShell {
diff --git a/python/examples/buildPythonApplication/default.nix b/python/examples/buildPythonApplication/default.nix
index 96fac6b9b19d..21194be5c3cb 100644
--- a/python/examples/buildPythonApplication/default.nix
+++ b/python/examples/buildPythonApplication/default.nix
@@ -8,11 +8,11 @@
     overlays = [];
     inherit system;
   },
+  python ? pkgs.python3,
   nix ? (import ../../..).default,
   testScripts,
 }:
 let
-  python = pkgs.python3;
   nixBindings = nix.python-bindings.override { inherit python; };
 in python.pkgs.buildPythonApplication {
   pname = "hello-nix";