diff --git a/mercurial/revlog.py b/mercurial/revlog.py
index 7d24a41200d32b48ff63638c9309877c2e187c91_bWVyY3VyaWFsL3JldmxvZy5weQ==..1635579f9bafdd80b793f6ecb205d5eeb52e9977_bWVyY3VyaWFsL3JldmxvZy5weQ== 100644
--- a/mercurial/revlog.py
+++ b/mercurial/revlog.py
@@ -726,7 +726,7 @@
             return self._headrevs()
 
     def computephases(self, roots):
-        return self.index.computephases(roots)
+        return self.index.computephasesmapsets(roots)
 
     def _headrevs(self):
         count = len(self)