--- a/hgext3rd/evolve/obshistory.py	Fri Feb 23 11:02:59 2018 +0100
+++ b/hgext3rd/evolve/obshistory.py	Mon Feb 26 13:59:30 2018 +0100
@@ -402,7 +402,7 @@
              label="evolve.node")
     fm.plain(' ')
 
-    fm.write('rev', '(%d)', int(ctx),
+    fm.write('rev', '(%d)', ctx.rev(),
              label="evolve.rev")
     fm.plain(' ')