diff --git a/DDS75-LB/DDS75-LB_ChirpstackV4_Decoder.txt b/DDS75-LB/DDS75-LB_ChirpstackV4_Decoder.txt
index 65465e7..962b0d7 100644
--- a/DDS75-LB/DDS75-LB_ChirpstackV4_Decoder.txt
+++ b/DDS75-LB/DDS75-LB_ChirpstackV4_Decoder.txt
@@ -51,7 +51,7 @@ function getMyDate(str){
 }
 
 function Decode(fPort, bytes, variables) {
-   if (port == 0x02) {
+   if (fPort == 0x02) {
         // Check the 5th bit of the first byte
         if (bytes[0] & 0x10) { // 0x10 is binary 00010000, which corresponds to the 5th bit
             // Only parse batV and additional distance data