diff --git a/pkgs/tools/graphics/graphviz/default.nix b/pkgs/tools/graphics/graphviz/default.nix
index 51de6b7b899a..678744ad5bbc 100644
--- a/pkgs/tools/graphics/graphviz/default.nix
+++ b/pkgs/tools/graphics/graphviz/default.nix
@@ -12,9 +12,8 @@ stdenv.mkDerivation rec {
 
   buildInputs =
     [ pkgconfig libpng libjpeg expat libXaw yacc libtool fontconfig
-      pango gd zlib
-    ] ++ stdenv.lib.optionals (xlibs != null) [ xlibs.xlibs xlibs.libXrender ]
-    ++ stdenv.lib.optionals (gtk != null) [ gtk glib ];
+      pango gd
+    ] ++ stdenv.lib.optionals (xlibs != null) [ xlibs.xlibs xlibs.libXrender ];
   
   configureFlags =
     [ "--with-pngincludedir=${libpng}/include"