diff --git a/Doc/library/unittest.rst b/Doc/library/unittest.rst
index 46f429c..1bd3819 100644
--- a/Doc/library/unittest.rst
+++ b/Doc/library/unittest.rst
@@ -958,7 +958,7 @@
       a regular expression object or a string containing a regular expression
       suitable for use by :func:`re.search`.  Examples::
 
-         self.assertRaisesRegexp(ValueError, 'invalid literal for.*XYZ$',
+         self.assertRaisesRegexp(ValueError, "invalid literal for.*XYZ'$",
                                  int, 'XYZ')
 
       or::