diff --git a/sugar/graphics/toolcombobox.py b/sugar/graphics/toolcombobox.py
index f92fccd0..052bd23a 100644
--- a/sugar/graphics/toolcombobox.py
+++ b/sugar/graphics/toolcombobox.py
@@ -18,11 +18,14 @@
 import gtk
 
 from sugar.graphics.combobox import ComboBox
+from sugar.graphics import units
 
 class ToolComboBox(gtk.ToolItem):
     def __init__(self):
         gtk.ToolItem.__init__(self)
 
+        self.set_border_width(units.microgrid_to_pixels(1))
+
         self.combo = ComboBox()
         self.add(self.combo)
         self.combo.show()