diff --git a/pkgs/tools/compression/zopfli/default.nix b/pkgs/tools/compression/zopfli/default.nix
index 81fdc95d88d..13e1d836938 100644
--- a/pkgs/tools/compression/zopfli/default.nix
+++ b/pkgs/tools/compression/zopfli/default.nix
@@ -19,6 +19,7 @@ stdenv.mkDerivation rec {
 
   postInstall = ''
     install -Dm444 -t $out/share/doc/zopfli ../README*
+    cp $src/src/zopfli/*.h $dev/include/
   '';
 
   enableParallelBuilding = true;