added missing call to set_tooltip

1 files changed, 2 insertions, 0 deletions

diff --git a/utils.py b/utils.py
index 6446f61..c4af209 100644
--- a/utils.py
+++ b/utils.py
@@ -103,6 +103,8 @@ def radio_button_factory(icon_name, toolbar, callback, cb_arg=None,
     ''' Add a radio button to a toolbar '''
     button = RadioToolButton(group=group)
     button.set_named_icon(icon_name)
+    if tooltip is not None:
+        button.set_tooltip(tooltip)
     if cb_arg is None:
         button.connect('clicked', callback)
     else: