diff --git a/src/i18n.py b/src/i18n.py
index a5b015b1f..f9e7db086 100644
--- a/src/i18n.py
+++ b/src/i18n.py
@@ -304,6 +304,8 @@ def internationalizeDocstring(obj):
     """Decorates functions and internationalize their docstring.
 
     Only useful for commands (commands' docstring is displayed on IRC)"""
+    if obj.__doc__ == None:
+	return obj
     if sys.modules[obj.__module__].__dict__.has_key('_'):
 	internationalizedCommands.update({hash(obj): obj})
 	try: