diff -r bdc5bb223b50 -r 61f36480740f hgext3rd/topic/stack.py
--- a/hgext3rd/topic/stack.py	Wed Mar 30 23:58:30 2016 -0700
+++ b/hgext3rd/topic/stack.py	Fri Apr 01 16:40:19 2016 -0700
@@ -21,7 +21,7 @@
         raise error.Abort(_('no active topic to list'))
     fm = ui.formatter('topicstack', opts)
     prev = None
-    for idx, r in enumerate(getstack(repo, topic)):
+    for idx, r in enumerate(getstack(repo, topic), 1):
         ctx = repo[r]
         p1 = ctx.p1()
         if p1.obsolete():