diff --git a/src/chat_control.py b/src/chat_control.py
index 6d034d96b..94232b7bc 100644
--- a/src/chat_control.py
+++ b/src/chat_control.py
@@ -2038,6 +2038,7 @@ class ChatControl(ChatControlBase):
 		# so this line adds that
 		window.set_events(gtk.gdk.POINTER_MOTION_MASK)
 		window.set_app_paintable(True)
+		window.set_type_hint(gtk.gdk.WINDOW_TYPE_HINT_TOOLTIP)
 		
 		window.realize()
 		window.window.set_back_pixmap(pixmap, False) # make it transparent
diff --git a/src/tooltips.py b/src/tooltips.py
index 301fb1e4a..e3c948a03 100644
--- a/src/tooltips.py
+++ b/src/tooltips.py
@@ -64,6 +64,7 @@ class BaseTooltip:
 		self.win.set_border_width(3)
 		self.win.set_resizable(False)
 		self.win.set_name('gtk-tooltips')
+		self.win.set_type_hint(gtk.gdk.WINDOW_TYPE_HINT_TOOLTIP)
 		
 		self.win.set_events(gtk.gdk.POINTER_MOTION_MASK)
 		self.win.connect_after('expose_event', self.expose)