diff --git a/stack/erp5/buildout.cfg b/stack/erp5/buildout.cfg
index f95ee2c31feb2569081f623eff983f0eb585b7fb..015bf503df836bcda45725be0ef00a84abf8c2d2 100644
--- a/stack/erp5/buildout.cfg
+++ b/stack/erp5/buildout.cfg
@@ -329,7 +329,7 @@ md5sum = c745d794b28cae64feba527f894d7340
 [template-scalability]
 < = download-base
 filename = instance-scalability.cfg.in
-md5sum = 02431bfd564f0d45a87f11f8dc97072c
+md5sum = cd676f9ad7c9cbb63a71404b699feb38
 
 [template-zeo]
 < = download-base
diff --git a/stack/erp5/instance-scalability.cfg.in b/stack/erp5/instance-scalability.cfg.in
index 7120bf3f8c4bae8f6df5702d118d99122dbfaacb..9157fc3c66385cbbd97a5cbc66bacf650193532d 100644
--- a/stack/erp5/instance-scalability.cfg.in
+++ b/stack/erp5/instance-scalability.cfg.in
@@ -39,7 +39,7 @@ config = {{ cluster_parameter_dict.keys() | join(' ') }}
 {% for key, value in cluster_parameter_dict.items() -%}
 config-{{ key }} = {{ dumps(value) }}
 {% endfor -%}
-return = mariadb-url family-scalability memcached-persistent-url memcached-volatile-url cloudooo-url
+return = mariadb-url family-scalability family-user memcached-persistent-url memcached-volatile-url cloudooo-url
 
 # Create wrapper
 [binary-wrap-launcher]
@@ -48,11 +48,9 @@ log-path = ${basedirectory:log}/runScalabilityTestSuite.log
 binary-path = {{ bin_directory }}/runScalabilityTestSuite
 wrapper-path = ${rootdirectory:bin}/runScalabilityTestSuite
 output = ${binary-wrap-launcher:binary-path}
-# TODO : get the erp5-cluster main url (apache listening user port ?)
-erp5-url = http://foo.bar
-# Run scalability test suite wrapper command with parameters
-# -\ dirty way to conserve spaces
-# command-line = "${binary-wrap-launcher:binary-path}" --erp5-url ${binary-wrap-launcher:erp5-url} --test-result-path {{ slapparameter_dict.get('test-result-path') }} --revision {{ slapparameter_dict.get('revision') }} --node-title {{ slapparameter_dict.get('node-title') }} --test-suite-master-url {{ slapparameter_dict.get('test-suite-master-url') }} --log-path ${binary-wrap-launcher:log-path}
+site-id = "/{{ site_id }}"
+# Suppose that there is a user zope family in the configuration
+erp5-url = ${erp5-cluster:connection-family-user}${:site-id}
 parameters-extra = $*
 command-line = ${binary-wrap-launcher:binary-path}
 return = url