diff --git a/addons/decimal_precision/decimal_precision.py b/addons/decimal_precision/decimal_precision.py
index d4d3d29dce0..890a57a998b 100644
--- a/addons/decimal_precision/decimal_precision.py
+++ b/addons/decimal_precision/decimal_precision.py
@@ -22,6 +22,7 @@
 from openerp import SUPERUSER_ID
 from openerp import pooler, tools
 from openerp.osv import osv, fields
+from openerp.modules.registry import RegistryManager
 
 class decimal_precision(osv.osv):
     _name = 'decimal.precision'
@@ -43,23 +44,28 @@ class decimal_precision(osv.osv):
         res = cr.fetchone()
         return res[0] if res else 2
 
-    def create(self, cr, uid, data, context=None):
-        res = super(decimal_precision, self).create(cr, uid, data, context=context)
-        self.precision_get.clear_cache(self)
-        return res
-
-    def unlink(self, cr, uid, ids, context=None):
-        res = super(decimal_precision, self).unlink(cr, uid, ids, context=context)
-        self.precision_get.clear_cache(self)
-        return res
-
-    def write(self, cr, uid, ids, data, *args, **argv):
-        res = super(decimal_precision, self).write(cr, uid, ids, data, *args, **argv)
+    def clear_cache(self, cr):
+        """clear cache and update models. Notify other workers to restart their registry."""
         self.precision_get.clear_cache(self)
         for obj in self.pool.obj_list():
             for colname, col in self.pool.get(obj)._columns.items():
                 if isinstance(col, (fields.float, fields.function)):
                     col.digits_change(cr)
+        RegistryManager.signal_registry_change(cr.dbname)
+
+    def create(self, cr, uid, data, context=None):
+        res = super(decimal_precision, self).create(cr, uid, data, context=context)
+        self.clear_cache(cr)
+        return res
+
+    def unlink(self, cr, uid, ids, context=None):
+        res = super(decimal_precision, self).unlink(cr, uid, ids, context=context)
+        self.clear_cache(cr)
+        return res
+
+    def write(self, cr, uid, ids, data, *args, **argv):
+        res = super(decimal_precision, self).write(cr, uid, ids, data, *args, **argv)
+        self.clear_cache(cr)
         return res
 
 decimal_precision()