diff --git a/FSStorage.py b/FSStorage.py
index e322959..12e7499 100644
--- a/FSStorage.py
+++ b/FSStorage.py
@@ -99,7 +99,8 @@ def dofileadd(cd, parent, urlbase, path, name):
 	elif mimetoklass.has_key(ty):
 		klass = mimetoklass[ty]
 	else:
-		raise KeyError, 'no item for mt: %s' % mt
+		log.msg('no item for mt: %s' % mt)
+		return
 
 	return cd.addItem(parent, klass, name, urlbase = urlbase,
 	    path = os.path.join(path, name), mimetype = mt)