#6146: fix markup bug.
diff --git a/Doc/library/rlcompleter.rst b/Doc/library/rlcompleter.rst
index 50f1afd..85a9d79 100644
--- a/Doc/library/rlcompleter.rst
+++ b/Doc/library/rlcompleter.rst
@@ -52,7 +52,7 @@
 
 .. method:: Completer.complete(text, state)
 
-   Return the *state*th completion for *text*.
+   Return the *state*\ th completion for *text*.
 
    If called for *text* that doesn't include a period character (``'.'``), it will
    complete from names currently defined in :mod:`__main__`, :mod:`__builtin__` and