diff --git a/mitterlib/ui/helpers/gtk_messagegrid.py b/mitterlib/ui/helpers/gtk_messagegrid.py
index 32dd7b2..cbe970d 100644
--- a/mitterlib/ui/helpers/gtk_messagegrid.py
+++ b/mitterlib/ui/helpers/gtk_messagegrid.py
@@ -124,7 +124,8 @@ class MessageGrid(gtk.ScrolledWindow, gobject.GObject):
 
         user_renderer = gtk.CellRendererPixbuf()
         user_column = gtk.TreeViewColumn('User', user_renderer)
-        user_column.set_fixed_width(48) # avatar size (we resize to 48x48)
+        user_column.set_fixed_width(54) # avatar size (we resize to 48x48)
+        # TODO: Check the border size for this. "54" is guesswork.
         user_column.set_sizing(gtk.TREE_VIEW_COLUMN_FIXED)
         user_column.set_cell_data_func(user_renderer,
                 self._cell_renderer_user)