diff --git a/pkgs/development/interpreters/falcon/default.nix b/pkgs/development/interpreters/falcon/default.nix
index 541e7b6f3248..ecac643f1ea9 100644
--- a/pkgs/development/interpreters/falcon/default.nix
+++ b/pkgs/development/interpreters/falcon/default.nix
@@ -11,8 +11,8 @@ stdenv.mkDerivation {
     sha256 = "1x3gdcz1gqhi060ngqi0ghryf69v8bn50yrbzfad8bhblvhzzdlf";
   };
 
-  nativeBuildInputs = [ pkg-config ];
-  buildInputs = [ cmake pcre zlib sqlite ];
+  nativeBuildInputs = [ cmake pkg-config ];
+  buildInputs = [ pcre zlib sqlite ];
 
   meta = with lib; {
     description = "Programming language with macros and syntax at once";
diff --git a/pkgs/development/libraries/hdf5-blosc/default.nix b/pkgs/development/libraries/hdf5-blosc/default.nix
index 0879bb9ee9dd..985660ff9073 100644
--- a/pkgs/development/libraries/hdf5-blosc/default.nix
+++ b/pkgs/development/libraries/hdf5-blosc/default.nix
@@ -15,7 +15,8 @@ stdenv.mkDerivation rec {
 
   outputs = [ "out" "dev" "plugin" ];
 
-  buildInputs = [ c-blosc cmake hdf5 ];
+  nativeBuildInputs = [ cmake ];
+  buildInputs = [ c-blosc hdf5 ];
 
   preConfigure = ''
     substituteInPlace CMakeLists.txt --replace 'set(BLOSC_INSTALL_DIR "''${CMAKE_CURRENT_BINARY_DIR}/blosc")' 'set(BLOSC_INSTALL_DIR "${c-blosc}")'