diff --git a/doc/src/sgml/ref/set.sgml b/doc/src/sgml/ref/set.sgml
index af71daf5321..eb725692fc6 100644
--- a/doc/src/sgml/ref/set.sgml
+++ b/doc/src/sgml/ref/set.sgml
@@ -201,7 +201,7 @@ default
 	  Setting the <envar>PGDATESTYLE</envar> environment variable.
 	 </member>
 	 <member>
-	  Running postmaster using the <option>-oe</option> parameter to set
+	  Running postmaster using the <option>-o -e</option> option to set
 	  dates to the <literal>European</literal> convention.
 	  Note that this affects only the some combinations of date styles; for example
 	  the ISO style is not affected by this parameter.