diff --git a/pkgs/tools/networking/mu/default.nix b/pkgs/tools/networking/mu/default.nix
index bd035e8f03cb..6c2a42e3a242 100644
--- a/pkgs/tools/networking/mu/default.nix
+++ b/pkgs/tools/networking/mu/default.nix
@@ -1,6 +1,6 @@
 { stdenv, fetchFromGitHub, sqlite, pkgconfig, autoreconfHook, pmccabe
 , xapian, glib, gmime3, texinfo , emacs, guile
-, gtk3, webkitgtk24x-gtk3, libsoup, icu
+, gtk3, webkitgtk, libsoup, icu
 , withMug ? false }:
 
 stdenv.mkDerivation rec {
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   buildInputs = [
     sqlite xapian glib gmime3 texinfo emacs guile libsoup icu
-  ] ++ stdenv.lib.optionals withMug [ gtk3 webkitgtk24x-gtk3 ];
+  ] ++ stdenv.lib.optionals withMug [ gtk3 webkitgtk ];
 
   nativeBuildInputs = [ pkgconfig autoreconfHook pmccabe ];