diff --git a/pkgs/development/libraries/openexr/default.nix b/pkgs/development/libraries/openexr/default.nix
index b575fa0ef08..5815db81352 100644
--- a/pkgs/development/libraries/openexr/default.nix
+++ b/pkgs/development/libraries/openexr/default.nix
@@ -20,8 +20,7 @@ stdenv.mkDerivation rec {
     ./bootstrap
   '';
 
-  nativeBuildInputs = [ pkgconfig ];
-  buildInputs = [ autoconf automake libtool ];
+  nativeBuildInputs = [ pkgconfig autoconf automake libtool ];
   propagatedBuildInputs = [ ilmbase zlib ];
 
   enableParallelBuilding = true;