diff --git a/pkgs/applications/networking/mumble/default.nix b/pkgs/applications/networking/mumble/default.nix
index a00837000541..8ed7c8d64d4d 100644
--- a/pkgs/applications/networking/mumble/default.nix
+++ b/pkgs/applications/networking/mumble/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, qt4, boost, speechd, protobuf, libsndfile,
- speex, libopus, avahi, pkgconfig
+ speex, libopus, avahi, pkgconfig,
 jackSupport ? false, 
 jackaudio ? null }: