diff --git a/src/gajim.py b/src/gajim.py
index 2ae96ded0..64f7f8c4d 100644
--- a/src/gajim.py
+++ b/src/gajim.py
@@ -193,6 +193,7 @@ if os.name == 'nt':
 warnings.filterwarnings('error', module='gtk')
 try:
     from gi.repository import GObject
+    GObject.threads_init()
     GObject.set_prgname('gajim')
     from gi.repository import Gtk
     from gi.repository import Gdk