--- a/mercurial/revlog.py	Mon Jan 06 01:14:52 2025 +0100
+++ b/mercurial/revlog.py	Tue Jan 07 17:34:25 2025 +0100
@@ -138,7 +138,7 @@
 parsers = policy.importmod('parsers')
 rustancestor = policy.importrust('ancestor', pyo3=True)
 rustdagop = policy.importrust('dagop', pyo3=True)
-rustrevlog = policy.importrust('revlog')
+rustrevlog = policy.importrust('revlog', pyo3=True)
 
 # Aliased for performance.
 _zlibdecompress = zlib.decompress