diff --git a/doc/src/sgml/ref/create_function.sgml b/doc/src/sgml/ref/create_function.sgml
index a617f965427..1871203e14d 100644
--- a/doc/src/sgml/ref/create_function.sgml
+++ b/doc/src/sgml/ref/create_function.sgml
@@ -129,7 +129,7 @@ CREATE [ OR REPLACE ] FUNCTION
 
      <listitem>
       <para>
-       The name of an argument. Some languages (currently only PL/pgSQL) let
+       The name of an argument. Some languages (including PL/pgSQL, but currently not SQL) let
        you use the name in the function body.  For other languages the
        name of an input argument is just extra documentation, so far as
        the function itself is concerned; but you can use input argument names