diff --git a/radio/src/targets/sky9x/board_sky9x.h b/radio/src/targets/sky9x/board_sky9x.h
index f26b8d3c4..d02404ced 100644
--- a/radio/src/targets/sky9x/board_sky9x.h
+++ b/radio/src/targets/sky9x/board_sky9x.h
@@ -290,7 +290,6 @@ uint32_t telemetryTransmitPending();
 void telemetryTransmitBuffer(uint8_t * buffer, uint32_t size);
 
 // Second UART driver
-#define serial2TracesEnabled()          false
 void serial2TelemetryInit(unsigned int protocol);
 bool telemetrySecondPortReceive(uint8_t & data);
 
diff --git a/radio/src/targets/sky9x/serial2_driver.cpp b/radio/src/targets/sky9x/serial2_driver.cpp
index 799936baa..4cd39bc3c 100644
--- a/radio/src/targets/sky9x/serial2_driver.cpp
+++ b/radio/src/targets/sky9x/serial2_driver.cpp
@@ -64,6 +64,11 @@ void serial2Putc(const char c)
   pUart->UART_THR = c;
 }
 
+uint8_t serial2TracesEnabled()
+{
+  return false;
+}
+
 /**
  * Configures a UART peripheral with the specified parameters.
  *