1 files changed, 2 insertions, 2 deletions
diff --git a/pkgs/applications/networking/mailreaders/thunderbird/default.nix b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
index 501e7180783..2a942ce14f3 100644
--- a/pkgs/applications/networking/mailreaders/thunderbird/default.nix
+++ b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
@@ -6,7 +6,7 @@
 , cairo, gstreamer, gst-plugins-base, icu, libpng, jemalloc
 , autoconf213, which, m4
 , writeScript, xidel, common-updater-scripts, coreutils, gnused, gnugrep, curl
-, enableGTK3 ? false, gtk3, wrapGAppsHook, makeWrapper
+, enableGTK3 ? false, gtk3, gnome3, wrapGAppsHook, makeWrapper
 , enableCalendar ? true
 , debugBuild ? false
 , # If you want the resulting program to call itself "Thunderbird" instead
@@ -47,7 +47,7 @@ in stdenv.mkDerivation rec {
       hunspell libevent libstartup_notification /* cairo */
       icu libpng jemalloc
     ]
-    ++ lib.optional enableGTK3 gtk3;
+    ++ lib.optionals enableGTK3 [ gtk3 gnome3.defaultIconTheme ];
 
   # from firefox + m4 + wrapperTool
   nativeBuildInputs = [ m4 autoconf213 which gnused pkgconfig perl python wrapperTool ];