diff --git a/pkgs/by-name/gi/git-pw/package.nix b/pkgs/by-name/gi/git-pw/package.nix
index ead452311e50..ee710113a09d 100644
--- a/pkgs/by-name/gi/git-pw/package.nix
+++ b/pkgs/by-name/gi/git-pw/package.nix
@@ -12,7 +12,7 @@ python3.pkgs.buildPythonApplication (finalAttrs: {
   version = "2.7.1";
   pyproject = true;
 
-  PBR_VERSION = finalAttrs.version;
+  env.PBR_VERSION = finalAttrs.version;
 
   src = fetchFromGitHub {
     owner = "getpatchwork";