diff --git a/pkgs/by-name/sa/savepagenow/package.nix b/pkgs/by-name/sa/savepagenow/package.nix
index 1f8b9b3242ca..230db6ed68d7 100644
--- a/pkgs/by-name/sa/savepagenow/package.nix
+++ b/pkgs/by-name/sa/savepagenow/package.nix
@@ -16,7 +16,7 @@ python3Packages.buildPythonApplication (finalAttrs: {
     sha256 = "sha256-ztM1g71g8SN1LTyFF7sxaLhC3+nVsC9fJwfYPjkUsdE=";
   };
 
-  SETUPTOOLS_SCM_PRETEND_VERSION = finalAttrs.version;
+  env.SETUPTOOLS_SCM_PRETEND_VERSION = finalAttrs.version;
 
   build-system = with python3Packages; [ setuptools-scm ];