diff --git a/wo/cli/plugins/site_update.py b/wo/cli/plugins/site_update.py
index a99cfdc..7b3a1a0 100644
--- a/wo/cli/plugins/site_update.py
+++ b/wo/cli/plugins/site_update.py
@@ -474,7 +474,8 @@ class WOSiteUpdateController(CementBaseController):
 
         # Vérification si rien n'a changé
         if all(globals()[version_key] is bool(check_php_version == version) for version_key,
-               version in WOVar.wo_php_versions.items()) and (stype == oldsitetype and cache == oldcachetype):
+               version in WOVar.wo_php_versions.items()) and (stype == oldsitetype
+                                                              and cache == oldcachetype and stype != 'alias'):
             Log.debug(self, "Nothing to update")
             return 1