diff --git a/doc/src/sgml/ref/call.sgml b/doc/src/sgml/ref/call.sgml
index 03da4518ee2..d45e3ec22e9 100644
--- a/doc/src/sgml/ref/call.sgml
+++ b/doc/src/sgml/ref/call.sgml
@@ -21,7 +21,7 @@ PostgreSQL documentation
 
  <refsynopsisdiv>
 <synopsis>
-CALL <replaceable class="parameter">name</replaceable> ( [ <replaceable class="parameter">argument</replaceable> ] [ , ...] )
+CALL <replaceable class="parameter">name</replaceable> ( [ <replaceable class="parameter">argument</replaceable> ] [, ...] )
 </synopsis>
  </refsynopsisdiv>