--- a/tests/test-revlog-raw.py	Fri Jan 12 18:10:03 2018 +0100
+++ b/tests/test-revlog-raw.py	Fri Jan 12 18:58:44 2018 +0100
@@ -20,7 +20,7 @@
 
 # The test wants to control whether to use delta explicitly, based on
 # "storedeltachains".
-revlog.revlog._isgooddelta = lambda self, d, textlen: self.storedeltachains
+revlog.revlog._isgooddeltainfo = lambda self, d, textlen: self.storedeltachains
 
 def abort(msg):
     print('abort: %s' % msg)