diff --git a/template_class_ref.htm b/template_class_ref.htm
index e2b2e924..0788cf5c 100644
--- a/template_class_ref.htm
+++ b/template_class_ref.htm
@@ -1985,7 +1985,7 @@ not match are copied to the output unchanged only if the flags
 parameter does not have the flag <a href="#format_flags">format_no_copy</a>
 set. If the flag <a href="#format_flags">format_first_only</a> is
 set then only the first occurance is replaced rather than all
-occurances.</p>
+occurrences.</p>
 
 <pre><b>template</b> &lt;<b>class</b> OutputIterator, <b>class</b> iterator, <b>class</b> traits, <b>class</b> Allocator, <b>class</b> charT&gt;
 OutputIterator regex_merge(OutputIterator out,&nbsp;