diff --git a/functions/ibase.xml b/functions/ibase.xml
index b1a1b8a0c2..9dbb473594 100644
--- a/functions/ibase.xml
+++ b/functions/ibase.xml
@@ -95,6 +95,7 @@
      <funcdef>int <function>ibase_query</function></funcdef>
      <paramdef> <parameter><optional> int link_identifier</optional></parameter></paramdef>
 	 <paramdef> <parameter> string query </parameter> </paramdef>
+	 <paramdef> <parameter><optional> int bind_args </optional></parameter> </paramdef>
     </funcsynopsis>
 	<simpara>
 		Performs a query on a Interbase database, returning a result identifier for use with <function>ibase_fetch_row</function>,