--- a/hgext/closehead.py	Tue Sep 28 09:08:43 2021 -0700
+++ b/hgext/closehead.py	Tue Sep 28 08:47:11 2021 -0700
@@ -15,7 +15,7 @@
     error,
     pycompat,
     registrar,
-    scmutil,
+    logcmdutil,
 )
 
 cmdtable = {}
@@ -68,7 +68,7 @@
     opts = pycompat.byteskwargs(opts)
 
     revs += tuple(opts.get(b'rev', []))
-    revs = scmutil.revrange(repo, revs)
+    revs = logcmdutil.revrange(repo, revs)
 
     if not revs:
         raise error.Abort(_(b'no revisions specified'))