diff --git a/ftplugin/orgmode/plugins/Todo.py b/ftplugin/orgmode/plugins/Todo.py
index 5b0b34b..faa77f9 100644
--- a/ftplugin/orgmode/plugins/Todo.py
+++ b/ftplugin/orgmode/plugins/Todo.py
@@ -251,7 +251,7 @@ def set_todo_state(cls, state):
     def init_org_todo(cls):
         u""" Initialize org todo selection window.
         """
-        bufnr = int(re.findall('\d+$',vim.current.buffer.name)[0])
+        bufnr = int(re.findall(r'\d+$',vim.current.buffer.name)[0])
         all_states = ORGTODOSTATES.get(bufnr, None)
 
         vim_commands = [