diff --git a/extra/modules/liberty.py b/extra/modules/liberty.py
index c3a4764..d4320e5 100644
--- a/extra/modules/liberty.py
+++ b/extra/modules/liberty.py
@@ -322,7 +322,8 @@ class AlternateLibertyDirectory(authentic.liberty.root.RootDirectory):
         return None
 
     def get_identity_by_resource_id(self, resource_id):
-        identity = stores.get_collectivity_store(None).get_identity_by_resource_id(resource_id)
+        identity = stores.get_collectivity_store(None).get_identity_by_resource_id(
+                resource_id.content)
         if not identity:
             return None
         if lasso.WSF_SUPPORT: