diff --git a/mercurial/upgrade.py b/mercurial/upgrade.py
index 744ea3c4f41ba7020f9c8e0361cb8f20047e5f30_bWVyY3VyaWFsL3VwZ3JhZGUucHk=..fe7d7917ceb584ded642a30f94f1d1f3dca9568a_bWVyY3VyaWFsL3VwZ3JhZGUucHk= 100644
--- a/mercurial/upgrade.py
+++ b/mercurial/upgrade.py
@@ -716,6 +716,6 @@
 
 UPGRADE_CHANGELOG = object()
 UPGRADE_MANIFEST = object()
-UPGRADE_FILELOG = object()
+UPGRADE_FILELOGS = object()
 
 UPGRADE_ALL_REVLOGS = frozenset(
@@ -720,6 +720,6 @@
 
 UPGRADE_ALL_REVLOGS = frozenset(
-    [UPGRADE_CHANGELOG, UPGRADE_MANIFEST, UPGRADE_FILELOG]
+    [UPGRADE_CHANGELOG, UPGRADE_MANIFEST, UPGRADE_FILELOGS]
 )
 
 
@@ -753,7 +753,7 @@
         return UPGRADE_CHANGELOG in revlogfilter
     elif entry.endswith(b'00manifest.i'):
         return UPGRADE_MANIFEST in revlogfilter
-    return UPGRADE_FILELOG in revlogfilter
+    return UPGRADE_FILELOGS in revlogfilter
 
 
 def _clonerevlogs(