diff --git a/yunohost_tools.py b/yunohost_tools.py
index ebffe1b4..538bf905 100644
--- a/yunohost_tools.py
+++ b/yunohost_tools.py
@@ -32,7 +32,7 @@ import subprocess
 import requests
 import json
 from yunohost import YunoHostError, YunoHostLDAP, validate, colorize, get_required_args, win_msg
-from yunohost_domain import domain_add, domain_list
+from yunohost_domain import domain_add, domain_list, domain_ssowatconf
 from yunohost_dyndns import dyndns_subscribe
 from yunohost_backup import backup_init
 
@@ -271,6 +271,9 @@ def tools_postinstall(domain, password, dyndns=False):
         # New domain config
         tools_maindomain(old_domain='yunohost.org', new_domain=domain, dyndns=dyndns)
 
+        # Generate SSOwat configuration file
+        domain_ssowatconf()
+
         # Change LDAP admin password
         tools_adminpw(old_password='yunohost', new_password=password)