diff --git a/radio/src/pulses/pxx1.cpp b/radio/src/pulses/pxx1.cpp
index e170a8010..a8f4ebefb 100644
--- a/radio/src/pulses/pxx1.cpp
+++ b/radio/src/pulses/pxx1.cpp
@@ -291,8 +291,6 @@ static const etx_serial_init pxx1ExtSerialInit = {
   .stop_bits = ETX_StopBits_One,
   .word_length = ETX_WordLength_8,
   .rx_enable = false,
-  .on_receive = extmoduleFifoReceive,
-  .on_error = extmoduleFifoError,
 };
 
 static void* pxx1InitExternal(uint8_t module)