--- a/mercurial/filelog.py
+++ b/mercurial/filelog.py
@@ -9,10 +9,9 @@ from revlog import *
 import os
 
 class filelog(revlog):
-    def __init__(self, opener, path, defversion=REVLOG_DEFAULT_VERSION):
+    def __init__(self, opener, path):
         revlog.__init__(self, opener,
-                        "/".join(("data", self.encodedir(path + ".i"))),
-                        defversion)
+                        "/".join(("data", self.encodedir(path + ".i"))))
 
     # This avoids a collision between a file named foo and a dir named
     # foo.i or foo.d