diff --git a/firmware/config_user.h.example b/firmware/config_user.h.example
index e7f5963..f3491b6 100644
--- a/firmware/config_user.h.example
+++ b/firmware/config_user.h.example
@@ -22,6 +22,8 @@ const char     *INFLUXDB_USER = "user";
 const char     *INFLUXDB_PASS = "password";
 
 // Device name
+// WARNING: Keep the name short! If your access point did not show up, you
+// maybe have a TOO LONG SSID!
 String          DEVICE_NAME   = "devicename";
 
 #endif