diff --git a/ext/custom-addons/cam_testenv/__openerp__.py b/ext/custom-addons/cam_testenv/__openerp__.py
index d54d10d2..610e0b9a 100644
--- a/ext/custom-addons/cam_testenv/__openerp__.py
+++ b/ext/custom-addons/cam_testenv/__openerp__.py
@@ -29,6 +29,8 @@ Test Environment
 ===========================
 * Shows the message "Test" in the background if the database matches the regular expression of the config paramter "dbfilter_test"
 * Default filter: test*
+* Example: dbfilter_test = ['.*',] # for all Databases
+* Example: dbfilter_test = ['db1','db2'] # only for databases 'db1' and 'db2'
 
     """,
     'author': 'camadeus Consulting GmbH',