diff --git a/htdocs/webservices/server_invoice.php b/htdocs/webservices/server_invoice.php
index 5987400ca7a..6627bab527c 100755
--- a/htdocs/webservices/server_invoice.php
+++ b/htdocs/webservices/server_invoice.php
@@ -46,7 +46,7 @@ if (empty($conf->global->MAIN_MODULE_WEBSERVICES))
 // Create the soap Object
 $server = new nusoap_server();
 $server->soap_defencoding='UTF-8';
-$ns='http://www.dolibarr.org/ns';
+$ns='http://www.dolibarr.org/ns/';
 $server->configureWSDL('WebServicesDolibarrInvoice',$ns);
 $server->wsdl->schemaTargetNamespace=$ns;
 
diff --git a/htdocs/webservices/server_other.php b/htdocs/webservices/server_other.php
index 3c03c8c78b6..9c010cc7fd1 100644
--- a/htdocs/webservices/server_other.php
+++ b/htdocs/webservices/server_other.php
@@ -46,7 +46,7 @@ if (empty($conf->global->MAIN_MODULE_WEBSERVICES))
 // Create the soap Object
 $server = new nusoap_server();
 $server->soap_defencoding='UTF-8';
-$ns='http://www.dolibarr.org/ns';
+$ns='http://www.dolibarr.org/ns/';
 $server->configureWSDL('WebServicesDolibarrOther',$ns);
 $server->wsdl->schemaTargetNamespace=$ns;
 
diff --git a/htdocs/webservices/server_thirdparty.php b/htdocs/webservices/server_thirdparty.php
index 3f71ba28e42..270956fa19c 100755
--- a/htdocs/webservices/server_thirdparty.php
+++ b/htdocs/webservices/server_thirdparty.php
@@ -46,7 +46,7 @@ if (empty($conf->global->MAIN_MODULE_WEBSERVICES))
 // Create the soap Object
 $server = new nusoap_server();
 $server->soap_defencoding='UTF-8';
-$ns='http://www.dolibarr.org/ns';
+$ns='http://www.dolibarr.org/ns/';
 $server->configureWSDL('WebServicesDolibarrThirdParty',$ns);
 $server->wsdl->schemaTargetNamespace=$ns;