diff --git a/docs/LangRef.html b/docs/LangRef.html
index e038839..1e6b3d7 100644
--- a/docs/LangRef.html
+++ b/docs/LangRef.html
@@ -2057,9 +2057,10 @@
   </li>
   <li>
     <p>'<tt>function args</tt>': argument list whose types match the
-function   signature argument types.  If the function signature
-indicates the function   accepts a variable number of arguments, the
-extra arguments can be   specified.</p>
+    function signature argument types. All arguments must be of 
+    <a href="#t_firstclass">first class</a> type. If the function signature 
+    indicates the function accepts a variable number of arguments, the extra 
+    arguments can be specified.</p>
   </li>
 </ol>
 <h5>Semantics:</h5>