diff --git a/mercurial/revset.py b/mercurial/revset.py
--- a/mercurial/revset.py
+++ b/mercurial/revset.py
@@ -2061,7 +2061,7 @@
         try:
             # fast path for integer revision
             r = int(t)
-            if str(r) != t or r not in cl:
+            if ('%d' % r) != t or r not in cl:
                 raise ValueError
             revs = [r]
         except ValueError: