diff --git a/platformio.ini b/platformio.ini
index d03274d..0a1f8c6 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -18,7 +18,7 @@ check_tool = cppcheck
 check_flags =
     cppcheck: --suppress=*:*.pio\* --inline-suppr
 monitor_flags = --raw
-# activate for OTA Update, use the CALLSIGN from is-cfg.h as upload_port:
+# activate for OTA Update, use the CALLSIGN from is-cfg.json as upload_port:
 #upload_protocol = espota
 #upload_port = <CALLSIGN>.local