diff --git a/doc/protocol.xml b/doc/protocol.xml
index ac78ab8ae..69bbc3b2f 100644
--- a/doc/protocol.xml
+++ b/doc/protocol.xml
@@ -66,7 +66,7 @@
         <function>strcpy</function> just fine with UTF-8 encoded
         strings. For example: <returnvalue>OK</returnvalue> encoded in
         UTF-8 is simply <returnvalue>OK</returnvalue>.  For more
-        information on UTF=8:
+        information on UTF-8:
         http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8)
       </para>
     </section>