diff --git a/nixos/modules/misc/nixpkgs.nix b/nixos/modules/misc/nixpkgs.nix
index 5eb38c510b48..7d50b8025bdd 100644
--- a/nixos/modules/misc/nixpkgs.nix
+++ b/nixos/modules/misc/nixpkgs.nix
@@ -21,6 +21,11 @@ let
       packageOverrides = pkgs:
         optCall lhs.packageOverrides pkgs //
         optCall (attrByPath ["packageOverrides"] ({}) rhs) pkgs;
+    } //
+    optionalAttrs (lhs ? perlPackageOverrides) {
+      perlPackageOverrides = pkgs:
+        optCall lhs.perlPackageOverrides pkgs //
+        optCall (attrByPath ["perlPackageOverrides"] ({}) rhs) pkgs;
     };
 
   configType = mkOptionType {