--- a/mercurial/store.py	Tue Dec 27 23:56:20 2011 +0100
+++ b/mercurial/store.py	Mon Dec 26 13:47:37 2011 +0100
@@ -232,7 +232,7 @@
         mode = None
     return mode
 
-_data = 'data 00manifest.d 00manifest.i 00changelog.d 00changelog.i'
+_data = 'data 00manifest.d 00manifest.i 00changelog.d 00changelog.i phaseroots'
 
 class basicstore(object):
     '''base class for local repository stores'''
@@ -410,7 +410,7 @@
 
     def copylist(self):
         d = ('data dh fncache'
-             ' 00manifest.d 00manifest.i 00changelog.d 00changelog.i')
+             ' 00manifest.d 00manifest.i 00changelog.d 00changelog.i phaseroots')
         return (['requires', '00changelog.i'] +
                 ['store/' + f for f in d.split()])