diff --git a/sulfur/src/sulfur/event.py b/sulfur/src/sulfur/event.py
index 74f64d136..debd0a305 100644
--- a/sulfur/src/sulfur/event.py
+++ b/sulfur/src/sulfur/event.py
@@ -25,5 +25,11 @@ class _SulfurSignals(gobject.GObject):
 gobject.type_register(_SulfurSignals)
 gobject.signal_new("ugc_data_update", _SulfurSignals, gobject.SIGNAL_RUN_FIRST,
                    gobject.TYPE_NONE, ())
+gobject.signal_new("install_queue_empty", _SulfurSignals, gobject.SIGNAL_RUN_FIRST,
+                   gobject.TYPE_NONE, ())
+gobject.signal_new("install_queue_filled", _SulfurSignals, gobject.SIGNAL_RUN_FIRST,
+                   gobject.TYPE_NONE, ())
+gobject.signal_new("install_queue_changed", _SulfurSignals, gobject.SIGNAL_RUN_FIRST,
+                   gobject.TYPE_NONE, (int,))
 
 SulfurSignals = _SulfurSignals()