diff --git a/openerp/addons/base/ir/ir_actions.py b/openerp/addons/base/ir/ir_actions.py
index 65e913a06f4..e19abdbe8f2 100644
--- a/openerp/addons/base/ir/ir_actions.py
+++ b/openerp/addons/base/ir/ir_actions.py
@@ -31,6 +31,7 @@ import openerp
 from openerp import SUPERUSER_ID
 from openerp import tools
 from openerp import workflow
+import openerp.api
 from openerp.osv import fields, osv
 from openerp.osv.orm import browse_record
 import openerp.report.interface
@@ -860,21 +861,14 @@ class ir_actions_server(osv.osv):
          - `relational`: find the related model and object, using the relational
            field, then target_model_pool.signal_workflow(cr, uid, target_id, <TRIGGER_NAME>)
         """
-        obj_pool = self.pool[action.model_id.model]
-        if action.use_relational_model == 'base':
-            target_id = context.get('active_id')
-            target_pool = obj_pool
-        else:
-            value = getattr(obj_pool.browse(cr, uid, context.get('active_id'), context=context), action.wkf_field_id.name)
-            if action.wkf_field_id.ttype == 'many2one':
-                target_id = value.id
-            else:
-                target_id = value
-            target_pool = self.pool[action.wkf_model_id.model]
+        # weird signature and calling -> no self.env, use action param's
+        record = action.env[action.model_id.model].browse(context['active_id'])
+        if action.use_relational_model == 'relational':
+            record = getattr(record, action.wkf_field_id.name)
+            if not isinstance(record, openerp.models.BaseModel):
+                record = action.env[action.wkf_model_id.model].browse(record)
 
-        trigger_name = action.wkf_transition_id.signal
-
-        workflow.trg_validate(uid, target_pool._name, target_id, trigger_name, cr)
+        record.signal_workflow(action.wkf_transition_id.signal)
 
     def run_action_multi(self, cr, uid, action, eval_context=None, context=None):
         res = False