--- a/hgext/mq.py
+++ b/hgext/mq.py
@@ -1586,7 +1586,7 @@ def series(ui, repo, **opts):
 def top(ui, repo, **opts):
     """print the name of the current patch"""
     q = repo.mq
-    t = len(q.applied)
+    t = q.series_end()
     if t:
         return q.qseries(repo, start=t-1, length=1, status='A',
                          summary=opts.get('summary'))

--- a/tests/test-mq-guards
+++ b/tests/test-mq-guards
@@ -76,6 +76,10 @@ hg qpop -a
 hg qselect 2
 echo % should push b.patch
 hg qpush
+hg qpush -a
+# Used to be an issue with holes in the patch sequence
+# So, put one hole on the base and ask for topmost patch.
+hg qtop
 hg qpop -a
 
 hg qselect 1 2

--- a/tests/test-mq-guards.out
+++ b/tests/test-mq-guards.out
@@ -46,6 +46,9 @@ Patch queue now empty
 % should push b.patch
 applying b.patch
 Now at: b.patch
+applying c.patch
+Now at: c.patch
+c.patch
 Patch queue now empty
 number of unguarded, unapplied patches has changed from 2 to 3
 % should push a.patch, b.patch