diff --git a/doc/type_traits.qbk b/doc/type_traits.qbk
index 8a47167..dcf031c 100644
--- a/doc/type_traits.qbk
+++ b/doc/type_traits.qbk
@@ -1707,7 +1707,7 @@ __examples
 expression that evaluates to /true/.]
 
 [:`is_base_of<Base, Base>::value` is an integral constant 
-expression that evaluates to /false/: a class is not it's own base.]
+expression that evaluates to /true/: a class is regarded as it's own base.]
 
 [:`is_base_of<Derived, Base>::value` is an integral constant 
 expression that evaluates to /false/: the arguments are the wrong way round.]
@@ -2875,3 +2875,4 @@ www.boost.org/more/mailing_lists.htm#main] for subscription details).
 [endsect]
 
 
+