diff --git a/example/config.json b/example/config.json
index d1c049b..f359e12 100644
--- a/example/config.json
+++ b/example/config.json
@@ -71,7 +71,7 @@
         {
             "key":
             {
-                "regex":"/^([\\d]{1,260})@([A-z0-9-_]{1,260})$/"
+                "regex":"/^([\\d]{1,64})@([A-z0-9-_]{1,64})$/"
             },
             "value":
             {