diff --git a/Codec/Dragino-RS485-LN.txt b/Codec/Dragino-RS485-LN.js
similarity index 97%
rename from Codec/Dragino-RS485-LN.txt
rename to Codec/Dragino-RS485-LN.js
index 1989135..56358fe 100644
--- a/Codec/Dragino-RS485-LN.txt
+++ b/Codec/Dragino-RS485-LN.js
@@ -123,4 +123,4 @@ function encodeDownlink(input) {
   
   // Should not reach here
   return {bytes: []};
-}
\ No newline at end of file
+}