diff --git a/core/trunk/core/class/ws.php b/core/trunk/core/class/ws.php
index 694d06a12ecf7c4a2fbb337dfc61fbb2bad135b5..4c9347bb68892a734672bb3499616425455a3576 100755
--- a/core/trunk/core/class/ws.php
+++ b/core/trunk/core/class/ws.php
@@ -290,7 +290,7 @@ $SOAP_typedef['returnRetrieveMasterResByChrono'] = array(
 
 $SOAP_dispatch_map['retrieveMasterResByChrono'] = array(
     'in'  => array(
-        'identifier' => 'sring',
+        'identifier' => 'string',
         'collId' => 'string',
     ),
     'out' => array('return' => '{urn:MaarchSoapServer}returnRetrieveMasterResByChrono'),