diff --git a/source/java/org/alfresco/repo/webservice/administration/AdministrationWebService.java b/source/java/org/alfresco/repo/webservice/administration/AdministrationWebService.java
index 63eccdfd73..3dd5c75ca2 100644
--- a/source/java/org/alfresco/repo/webservice/administration/AdministrationWebService.java
+++ b/source/java/org/alfresco/repo/webservice/administration/AdministrationWebService.java
@@ -513,6 +513,7 @@ public class AdministrationWebService extends AbstractWebService implements
     {
         for (String userName : userNames)
         {
+            this.authenticationService.deleteAuthentication(userName);
             this.personService.deletePerson(userName);
         }        
     }