diff --git a/pkgs/build-support/build-nim-sbom.nix b/pkgs/build-support/build-nim-sbom.nix
index ef60ac5a0af8..1a13196f24a0 100644
--- a/pkgs/build-support/build-nim-sbom.nix
+++ b/pkgs/build-support/build-nim-sbom.nix
@@ -169,7 +169,7 @@ let
           inherit (sbom) components;
         });
 
-      passthru = {
+      passthru = passthru // {
         inherit sbom properties nimBin;
       };
     };