diff --git a/bin/tools/config.py b/bin/tools/config.py
index 2179a6901fa..23a1666b6c6 100644
--- a/bin/tools/config.py
+++ b/bin/tools/config.py
@@ -120,7 +120,7 @@ class configmanager(object):
         parser.add_option('--debug', dest='debug_mode', action='store_true', default=False, help='enable debug mode')
         parser.add_option("--assert-exit-level", dest='assert_exit_level', type="choice", choices=self._LOGLEVELS.keys(),
                           help="specify the level at which a failed assertion will stop the server. Accepted values: %s" % (self._LOGLEVELS.keys(),))
-        parser.add_option('--price_accuracy', dest='price_accuracy', default='2', help='specify the price accuracy')
+        parser.add_option('--price_accuracy', dest='price_accuracy', default='2', help='deprecated since v6.0, replaced by module decimal_precision')
         parser.add_option('--no-database-list', action="store_false", dest='list_db', default=True, help="disable the ability to return the list of databases")
 
         if hasSSL: