diff --git a/product/ERP5/Document/Alarm.py b/product/ERP5/Document/Alarm.py
index 9ab15e105f88d336376880d37fc7bce281fc645c..f0c033df701de8b106e821574dc219516d689fdc 100644
--- a/product/ERP5/Document/Alarm.py
+++ b/product/ERP5/Document/Alarm.py
@@ -292,6 +292,7 @@ class Alarm(XMLObject, PeriodicityMixin):
     This method should respond quickly.  Basically the response depends on some
     previous calculation made by activeSense.
     """
+    value = False
     method_id = self.getSenseMethodId()
     process = self.getLastActiveProcess()
     if process is None: