diff --git a/Doc/howto/regex.rst b/Doc/howto/regex.rst
index 8f39eeb..07a8b56 100644
--- a/Doc/howto/regex.rst
+++ b/Doc/howto/regex.rst
@@ -76,7 +76,7 @@
 Here's a complete list of the metacharacters; their meanings will be discussed
 in the rest of this HOWTO. ::
 
-   . ^ $ * + ? { [ ] \ | ( )
+   . ^ $ * + ? { } [ ] \ | ( )
 
 The first metacharacters we'll look at are ``[`` and ``]``. They're used for
 specifying a character class, which is a set of characters that you wish to