diff --git a/pkgs/applications/networking/browsers/firefox/wrapper.nix b/pkgs/applications/networking/browsers/firefox/wrapper.nix
index 010f60881b5..12ea714fb23 100644
--- a/pkgs/applications/networking/browsers/firefox/wrapper.nix
+++ b/pkgs/applications/networking/browsers/firefox/wrapper.nix
@@ -71,7 +71,7 @@ let
             ++ lib.optionals (cfg.enableQuakeLive or false)
             (with xorg; [ stdenv.cc libX11 libXxf86dga libXxf86vm libXext libXt alsaLib zlib libudev ])
             ++ lib.optional (enableAdobeFlash && (cfg.enableAdobeFlashDRM or false)) hal-flash
-            ++ lib.optional (config.pulseaudio or false) libpulseaudio;
+            ++ lib.optional (config.pulseaudio or true) libpulseaudio;
       gst-plugins = with gst_all; [ gst-plugins-base gst-plugins-good gst-plugins-bad gst-plugins-ugly gst-ffmpeg ];
       gtk_modules = [ libcanberra_gtk2 ];