diff --git a/message.xml b/message.xml
index b31e04e..898f4d5 100644
--- a/message.xml
+++ b/message.xml
@@ -44,9 +44,8 @@ this repository contains the full copyright notices and license terms. -->
         <record model="ir.message" id="msg_missing_config_default">
             <field name="text">Missing default values for workday or restday on configuration!</field>
         </record>
-
-        <!-- <record model="ir.message" id="msg_invalid_formula">
+        <record model="ir.message" id="msg_invalid_formula">
             <field name="text">Invalid formula "%(formula)s" for unit price!</field>
-        </record> -->
+        </record>
     </data>
 </tryton>
diff --git a/tryton.cfg b/tryton.cfg
index 558a87b..c1cb129 100644
--- a/tryton.cfg
+++ b/tryton.cfg
@@ -1,5 +1,5 @@
 [tryton]
-version=6.0.7
+version=6.0.8
 depends:
     party
     currency