diff --git a/enable_if.html b/enable_if.html
index 7a00225..2b6ac0a 100644
--- a/enable_if.html
+++ b/enable_if.html
@@ -128,7 +128,7 @@ When valid, enable_if_c<B, T>::type equals T.
The enable_if_c template can thus be used for controlling when functions are considered for
overload resolution and when they are not.
For example, the following function is defined for all arithmetic types (according to the
-classification of the Boost type_traits library):
+classification of the Boost type_traits library):
template <class T>
typename enable_if_c<boost::is_arithmetic<T>::value, T>::type
foo(T t) { return t; }