diff --git a/openerp/osv/orm.py b/openerp/osv/orm.py
index 910e08b3a69..ae0eb0f8bff 100644
--- a/openerp/osv/orm.py
+++ b/openerp/osv/orm.py
@@ -3861,10 +3861,12 @@ class BaseModel(object):
             getattr(wf_service, trigger)(uid, self._name, res_id, cr)
 
     def _workflow_signal(self, cr, uid, ids, signal, context=None):
-        """Send given workflow signal"""
+        """Send given workflow signal and return a dict mapping ids to workflow results"""
         wf_service = netsvc.LocalService("workflow")
+        result = {}
         for res_id in ids:
-            wf_service.trg_validate(uid, self._name, res_id, signal, cr)
+            result[res_id] = wf_service.trg_validate(uid, self._name, res_id, signal, cr)
+        return result
 
     def unlink(self, cr, uid, ids, context=None):
         """
diff --git a/openerp/osv/osv.py b/openerp/osv/osv.py
index 94f179c7897..7703406ec96 100644
--- a/openerp/osv/osv.py
+++ b/openerp/osv/osv.py
@@ -188,7 +188,8 @@ class object_proxy(object):
         object = pooler.get_pool(cr.dbname).get(obj)
         if not object:
             raise except_osv('Object Error', 'Object %s doesn\'t exist' % str(obj))
-        return object._workflow_signal(cr, uid, [args[0]], signal)
+        res_id = args[0]
+        return object._workflow_signal(cr, uid, [res_id], signal)[res_id]
 
     @check
     def exec_workflow(self, db, uid, obj, signal, *args):