diff --git a/src/main/drivers/serial_uart.c b/src/main/drivers/serial_uart.c
index 9307b0cab8b..e2009331c6b 100644
--- a/src/main/drivers/serial_uart.c
+++ b/src/main/drivers/serial_uart.c
@@ -36,7 +36,7 @@
 #include "serial_uart_impl.h"
 
 static void usartConfigurePinInversion(uartPort_t *uartPort) {
-#if !defined(USE_UART_INVERTER) && !defined(STM32F7)
+#if !defined(USE_UART_INVERTER)
     UNUSED(uartPort);
 #else
     bool inverted = uartPort->port.options & SERIAL_INVERTED;
diff --git a/src/main/target/common.h b/src/main/target/common.h
index 918398f3164..786d8d084b0 100644
--- a/src/main/target/common.h
+++ b/src/main/target/common.h
@@ -197,8 +197,8 @@
 #define USE_HEADTRACKER_SERIAL
 #define USE_HEADTRACKER_MSP
 
-#if defined(STM32F7) || defined(STM32H7)
-// needs bi-direction inverter, not available on F4 hardware.
+#if defined(STM32F7) || defined(STM32H7) || defined(RP2350)
+// needs bi-directional inverter; not available on F4 or AT32F43x hardware
 #define USE_TELEMETRY_SBUS2
 #endif