diff --git a/pkgs/development/compilers/chicken/4/chicken.nix b/pkgs/development/compilers/chicken/4/chicken.nix
index 8ea522a81a92..1779d9c3ce54 100644
--- a/pkgs/development/compilers/chicken/4/chicken.nix
+++ b/pkgs/development/compilers/chicken/4/chicken.nix
@@ -39,11 +39,13 @@ stdenv.mkDerivation {
     ./0001-Introduce-CHICKEN_REPOSITORY_EXTRA.patch
   ];
 
-  buildInputs = [
+  nativeBuildInputs = [
     makeWrapper
-  ] ++ (lib.optionals (bootstrap-chicken != null) [
+  ];
+
+  buildInputs = lib.optionals (bootstrap-chicken != null) [
     bootstrap-chicken
-  ]);
+  ];
 
   preBuild = lib.optionalString (bootstrap-chicken != null) ''
     # Backup the build* files - those are generated from hostname,
diff --git a/pkgs/development/compilers/chicken/5/chicken.nix b/pkgs/development/compilers/chicken/5/chicken.nix
index 32d8435e378d..0df2476c4ba2 100644
--- a/pkgs/development/compilers/chicken/5/chicken.nix
+++ b/pkgs/development/compilers/chicken/5/chicken.nix
@@ -31,11 +31,13 @@ stdenv.mkDerivation rec {
     "C_COMPILER=$(CC)"
   ]);
 
-  buildInputs = [
+  nativeBuildInputs = [
     makeWrapper
-  ] ++ (lib.optionals (bootstrap-chicken != null) [
+  ];
+
+  buildInputs = lib.optionals (bootstrap-chicken != null) [
     bootstrap-chicken
-  ]);
+  ];
 
   postInstall = ''
     for f in $out/bin/*