diff --git a/lib/default.nix b/lib/default.nix
index ae8a1899b193..9da78ff0da7c 100644
--- a/lib/default.nix
+++ b/lib/default.nix
@@ -88,7 +88,8 @@ let
     inherit (stringsWithDeps) textClosureList textClosureMap
       noDepEntry fullDepEntry packEntry stringAfter;
     inherit (customisation) overrideDerivation makeOverridable
-      callPackageWith callPackagesWith addPassthru hydraJob makeScope;
+      callPackageWith callPackagesWith addPassthru hydraJob makeScope
+      callPackageWithOutputWith;
     inherit (meta) addMetaAttrs dontDistribute setName updateName
       appendToName mapDerivationAttrset lowPrio lowPrioSet hiPrio
       hiPrioSet;