diff --git a/loraprs_service.cpp b/loraprs_service.cpp
index 1c388ca..f54e144 100644
--- a/loraprs_service.cpp
+++ b/loraprs_service.cpp
@@ -292,7 +292,7 @@ void Service::setupLora(long loraFreq, long bw, int sf, int cr, int pwr, int syn
   LoRa.setCodingRate4(cr);
   LoRa.setTxPower(pwr);
 
-  if (enableCrc) {
+  if (config_.crcBytes > 0) {
     LoRa.enableCrc();
   }