diff --git a/sw/airborne/boards/apogee_1.0.h b/sw/airborne/boards/apogee_1.0.h
index eba373f9d3..78ff267397 100644
--- a/sw/airborne/boards/apogee_1.0.h
+++ b/sw/airborne/boards/apogee_1.0.h
@@ -113,7 +113,7 @@
 #define POWER_SWITCH_LED 9
 
 
-/* Pint to set Uart2 RX polarity, on PB13, output low inverts, high doesn't */
+/* Pint to set Uart2 RX polarity, on PB13, output high inverts, low doesn't */
 #define RC_POLARITY_GPIO_PORT GPIOB
 #define RC_POLARITY_GPIO_PIN GPIO13
 
diff --git a/sw/airborne/subsystems/radio_control/sbus.c b/sw/airborne/subsystems/radio_control/sbus.c
index 21bf9dc485..726e0781c5 100644
--- a/sw/airborne/subsystems/radio_control/sbus.c
+++ b/sw/airborne/subsystems/radio_control/sbus.c
@@ -48,11 +48,11 @@
  * SBUS signal has a reversed polarity compared to normal UART
  * this allows to using hardware UART peripheral by changing
  * the input signal polarity.
- * Setting this gpio ouput low inverts the signal,
- * output high sets it to normal polarity.
+ * Setting this gpio ouput high inverts the signal,
+ * output low sets it to normal polarity.
  */
 #ifndef RC_SET_POLARITY
-#define RC_SET_POLARITY gpio_output_low
+#define RC_SET_POLARITY gpio_output_high
 #endif