diff --git a/modules/trade_finance/facility.py b/modules/trade_finance/facility.py
index 95f40de..0909192 100644
--- a/modules/trade_finance/facility.py
+++ b/modules/trade_finance/facility.py
@@ -133,22 +133,27 @@ class Facility(Workflow, ModelSQL, ModelView):
         'close': {'invisible': ~Eval('status').in_(['active', 'blocked'])},
     }
 
+    @classmethod
     @Workflow.transition('active')
     def activate(cls, facilities):
         pass
 
+    @classmethod
     @Workflow.transition('blocked')
     def block(cls, facilities):
         pass
 
+    @classmethod
     @Workflow.transition('active')
     def unblock(cls, facilities):
         pass
 
+    @classmethod
     @Workflow.transition('cancelled')
     def cancel(cls, facilities):
         pass
 
+    @classmethod
     @Workflow.transition('closed')
     def close(cls, facilities):
         pass