diff --git a/src/llcc68.cpp b/src/llcc68.cpp
index 5ebbf9b..52e36ee 100644
--- a/src/llcc68.cpp
+++ b/src/llcc68.cpp
@@ -874,9 +874,9 @@ LLCC68::set_packet_params(uint16_t preamble_length, uint8_t payload_length,
   const uint8_t data[] = {
       static_cast<uint8_t>((preamble_length >> 8) & 0xFF),
       static_cast<uint8_t>(preamble_length & 0xFF),
-      crc_type,
-      payload_length,
       hdr_type,
+      payload_length,
+      crc_type,
       iq_type,
   };
   return write_stream(RADIOLIB_SX126X_CMD_SET_PACKET_PARAMS, data);