diff --git a/pkgs/applications/networking/mumble/default.nix b/pkgs/applications/networking/mumble/default.nix
index 358a0bb12288..611d77eb2150 100644
--- a/pkgs/applications/networking/mumble/default.nix
+++ b/pkgs/applications/networking/mumble/default.nix
@@ -1,20 +1,20 @@
 { stdenv, fetchurl, pkgconfig
 , avahi, boost, libopus, libsndfile, protobuf, qt4, speex
-, jackSupport ? false, jack2 ? null
+, jackSupport ? false, libjack2 ? null
 , speechdSupport ? false, speechd ? null
-, pulseSupport ? false, pulseaudio ? null
+, pulseSupport ? false, libpulseaudio ? null
 }:
 
-assert jackSupport -> jack2 != null;
+assert jackSupport -> libjack2 != null;
 assert speechdSupport -> speechd != null;
-assert pulseSupport -> pulseaudio != null;
+assert pulseSupport -> libpulseaudio != null;
 
 let
   optional = stdenv.lib.optional;
   optionalString = stdenv.lib.optionalString;
 in
 stdenv.mkDerivation rec {
-  name = "mumble-" + version;
+  name = "mumble-${version}";
   version = "1.2.8";
 
   src = fetchurl {
@@ -44,9 +44,9 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ pkgconfig ];
 
   buildInputs = [ avahi boost libopus libsndfile protobuf qt4 speex ]
-    ++ optional jackSupport jack2
+    ++ optional jackSupport libjack2
     ++ optional speechdSupport speechd
-    ++ optional pulseSupport pulseaudio;
+    ++ optional pulseSupport libpulseaudio;
 
   installPhase = ''
     mkdir -p $out
diff --git a/pkgs/applications/networking/mumble/murmur.nix b/pkgs/applications/networking/mumble/murmur.nix
index 1c06392f60b2..cb10fca6cd90 100644
--- a/pkgs/applications/networking/mumble/murmur.nix
+++ b/pkgs/applications/networking/mumble/murmur.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, qt4, boost, protobuf
+{ stdenv, qt4, boost, protobuf, mumble
 , avahi, libcap, pkgconfig
 , iceSupport ? false
 , zeroc_ice ? null
@@ -11,13 +11,9 @@ let
   optionalString = stdenv.lib.optionalString;
 in
 stdenv.mkDerivation rec {
-  name = "murmur-" + version;
-  version = "1.2.8";
+  name = "murmur-${version}";
 
-  src = fetchurl {
-    url = "mirror://sourceforge/mumble/mumble-${version}.tar.gz";
-    sha256 = "0ng1xd7i0951kqnd9visf84y2dcwia79a1brjwfvr1wnykgw6bsc";
-  };
+  inherit (mumble) version src;
 
   patchPhase = optional iceSupport ''
     sed -i 's,/usr/share/Ice/,${zeroc_ice}/,g' src/murmur/murmur.pro