diff --git a/pkgs/applications/networking/instant-messengers/gajim/default.nix b/pkgs/applications/networking/instant-messengers/gajim/default.nix
index 3c3cc5ccdfc..d5902d14359 100644
--- a/pkgs/applications/networking/instant-messengers/gajim/default.nix
+++ b/pkgs/applications/networking/instant-messengers/gajim/default.nix
@@ -6,6 +6,7 @@
 , enableE2E ? true
 , enableRST ? true
 , enableSpelling ? true, gtkspell ? null
+, enableNotifications ? false
 , enableLaTeX ? false, texLive ? null
 }:
 
@@ -14,6 +15,7 @@ assert enableJingle -> farstream != null && gst_plugins_bad != null
 assert enableE2E -> pythonPackages.pycrypto != null;
 assert enableRST -> pythonPackages.docutils != null;
 assert enableSpelling -> gtkspell != null;
+assert enableNotifications -> pythonPackages.notify != null;
 assert enableLaTeX -> texLive != null;
 
 with stdenv.lib;
@@ -71,6 +73,7 @@ stdenv.mkDerivation rec {
   ] ++ optionals enableJingle [ farstream gst_plugins_bad libnice ]
     ++ optional enableE2E pythonPackages.pycrypto
     ++ optional enableRST pythonPackages.docutils
+    ++ optional enableNotifications pythonPackages.notify
     ++ optional enableLaTeX texLive;
 
   postInstall = ''