diff -r b81486b609a3 -r 5e3c718692bb mercurial/changelog.py
--- a/mercurial/changelog.py	Tue Apr 14 03:16:23 2020 +0200
+++ b/mercurial/changelog.py	Tue Apr 14 03:27:04 2020 +0200
@@ -385,9 +385,7 @@
             datafile=datafile,
             checkambig=True,
             mmaplargeindex=True,
-            persistentnodemap=opener.options.get(
-                b'exp-persistent-nodemap', False
-            ),
+            persistentnodemap=opener.options.get(b'persistent-nodemap', False),
         )
 
         if self._initempty and (self.version & 0xFFFF == revlog.REVLOGV1):