diff --git a/pkgs/os-specific/linux/kbd/default.nix b/pkgs/os-specific/linux/kbd/default.nix
index 2483a86c4864..c54ac4c2c731 100644
--- a/pkgs/os-specific/linux/kbd/default.nix
+++ b/pkgs/os-specific/linux/kbd/default.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
     sha256 = "0ff674y6d3b6ix08b9l2yzv8igns768biyp5y92vip7iz4xv2p2j";
   };
 
-  buildInputs = [ bison flex autoconf automake  ];
+  buildNativeInputs = [ bison flex autoconf automake ];
 
   # We get a warning in armv5tel-linux and the fuloong2f,
   # so we disable -Werror in it
diff --git a/pkgs/shells/bash/default.nix b/pkgs/shells/bash/default.nix
index 0f4b610f4123..7971a19871c3 100644
--- a/pkgs/shells/bash/default.nix
+++ b/pkgs/shells/bash/default.nix
@@ -34,8 +34,8 @@ stdenv.mkDerivation rec {
       import ./bash-patches.nix patch;
 
   # Note: Bison is needed because the patches above modify parse.y.
-  buildNativeInputs = [bison];
-  buildInputs = stdenv.lib.optional (texinfo != null) texinfo
+  buildNativeInputs = [bison]
+    ++ stdenv.lib.optional (texinfo != null) texinfo
     ++ stdenv.lib.optional interactive readline;
 
   configureFlags = if interactive then "--with-installed-readline" else "--disable-readline";