diff --git a/pkgs/applications/networking/browsers/palemoon/default.nix b/pkgs/applications/networking/browsers/palemoon/default.nix
index c59d23ecdba1..ef28e9234ed6 100644
--- a/pkgs/applications/networking/browsers/palemoon/default.nix
+++ b/pkgs/applications/networking/browsers/palemoon/default.nix
@@ -11,7 +11,7 @@
 
 let
 
-  libPath = lib.makeLibraryPath [ ffmpeg_3 ];
+  libPath = lib.makeLibraryPath [ ffmpeg_3 libpulseaudio ];
   gtkVersion = if withGTK3 then "3" else "2";
 
 in stdenv.mkDerivation rec {