diff --git a/pkgs/lib/customisation.nix b/pkgs/lib/customisation.nix index 49ae440a729..54965ffb580 100644 --- a/pkgs/lib/customisation.nix +++ b/pkgs/lib/customisation.nix @@ -42,9 +42,14 @@ rec { in newDrv // { meta = if drv ? meta then drv.meta else {}; passthru = if drv ? passthru then drv.passthru else {}; - hostDrv = overrideDerivation drv.hostDrv f; - buildDrv = overrideDerivation drv.buildDrv f; - }; + } + // + (if (drv ? hostDrv && drv ? buildDrv) + then { + hostDrv = overrideDerivation drv.hostDrv f; + buildDrv = overrideDerivation drv.buildDrv f; + } + else { }); # usage: (you can use override multiple times)