diff --git a/counting_iterator.htm b/counting_iterator.htm
index e337044..40b9668 100644
--- a/counting_iterator.htm
+++ b/counting_iterator.htm
@@ -282,7 +282,7 @@ template <class Incrementable>
 struct counting_iterator_traits
 {
   if (numeric_limits<Incrementable&gt::is_specialized) {
-    if (!numeric_limits<Incrementable&gt::is_integral)
+    if (!numeric_limits<Incrementable&gt::is_integer)
        COMPILE_TIME_ERROR;
 
     if (!numeric_limits<Incrementable&gt::is_bounded