diff --git a/sphinxtogithub/sphinxtogithub.py b/sphinxtogithub/sphinxtogithub.py
index 4d0b830..a31578a 100644
--- a/sphinxtogithub/sphinxtogithub.py
+++ b/sphinxtogithub/sphinxtogithub.py
@@ -107,7 +107,7 @@ def __init__(self, name, root, renamer):
 
         self.name = name
         self.new_name = name[1:]
-        self.root = root + os.sep
+        self.root = str(root) + os.sep
         self.renamer = renamer
 
     def path(self):