diff --git a/pkgs/top-level/impure.nix b/pkgs/top-level/impure.nix
index b0532ceb5db..da288f15d2e 100644
--- a/pkgs/top-level/impure.nix
+++ b/pkgs/top-level/impure.nix
@@ -72,6 +72,8 @@ in
         else overlays homeOverlaysDir
       else []
 
+, crossOverlays ? []
+
 , ...
 } @ args:
 
@@ -80,7 +82,7 @@ in
 assert args ? localSystem -> !(args ? system || args ? platform);
 
 import ./. (builtins.removeAttrs args [ "system" "platform" ] // {
-  inherit config overlays crossSystem;
+  inherit config overlays crossSystem crossOverlays;
   # Fallback: Assume we are building packages on the current (build, in GNU
   # Autotools parlance) system.
   localSystem = (if args ? localSystem then {}