diff --git a/implementation.htm b/implementation.htm
index f0a0879..b2c3db9 100644
--- a/implementation.htm
+++ b/implementation.htm
@@ -76,7 +76,7 @@ members of the concept checking class.
 
 <pre>
   template &lt;class Iter&gt;
-  struct RandomAccessIterator_concept
+  struct RandomAccessIteratorConcept
   {
     void constraints()
     {