diff --git a/apps/m9zCtrlTty/config/config.json b/apps/m9zCtrlTty/config/config.json
index 9c2b20e..2f9c657 100644
--- a/apps/m9zCtrlTty/config/config.json
+++ b/apps/m9zCtrlTty/config/config.json
@@ -30,7 +30,7 @@
     "version": "1.0.2",
     "meterAddr": "0x04"
   },
-  "MessageInterval": 5,
+  "MessageInterval": 15,
   "Firefox": {
     "DebPkgPath": "./firefox",
     "DebPkgName": "firefox-deb.tar.gz",