diff --git a/conf/boards/stm32f4_discovery.makefile b/conf/boards/stm32f4_discovery.makefile
index 1961c9c387..b0016fc9fd 100644
--- a/conf/boards/stm32f4_discovery.makefile
+++ b/conf/boards/stm32f4_discovery.makefile
@@ -42,7 +42,7 @@ MODEM_BAUD ?= B57600
 GPS_PORT ?= UART3
 GPS_BAUD ?= B38400
 
-RADIO_CONTROL_SPEKTRUM_PRIMARY_PORT ?= UART2
+RADIO_CONTROL_SPEKTRUM_PRIMARY_PORT ?= UART1
 
 
 #
diff --git a/sw/airborne/boards/stm32f4_discovery.h b/sw/airborne/boards/stm32f4_discovery.h
index d73f2533c2..8ca6d3c988 100644
--- a/sw/airborne/boards/stm32f4_discovery.h
+++ b/sw/airborne/boards/stm32f4_discovery.h
@@ -12,7 +12,7 @@
  * PA7  = SPI1 MOSI if STM32F4_DISCOVERY_SPI1_FOR_LIS302
  * PA8  = SPECTRUM BIND
  * PA9  = FREE (ONLY if usb is not active during runtime, PC0 must be high or input )
- * PA10 = UART2 (Spektrum input)
+ * PA10 = UART1 RX (Spektrum input)
  * PA11 = FREE if usb is not active during runtime
  * PA12 = FREE if usb is not active during runtime
  * PA13 = FREE
@@ -593,13 +593,13 @@
 #define SPEKTRUM_BIND_PIN GPIO8
 #define SPEKTRUM_BIND_PIN_PORT GPIOA
 
-#define SPEKTRUM_UART2_RCC RCC_USART1
-#define SPEKTRUM_UART2_BANK GPIOA
-#define SPEKTRUM_UART2_PIN GPIO10
-#define SPEKTRUM_UART2_AF GPIO_AF7
-#define SPEKTRUM_UART2_IRQ NVIC_USART1_IRQ
-#define SPEKTRUM_UART2_ISR usart1_isr
-#define SPEKTRUM_UART2_DEV USART1
+#define SPEKTRUM_UART1_RCC RCC_USART1
+#define SPEKTRUM_UART1_BANK GPIOA
+#define SPEKTRUM_UART1_PIN GPIO10
+#define SPEKTRUM_UART1_AF GPIO_AF7
+#define SPEKTRUM_UART1_IRQ NVIC_USART1_IRQ
+#define SPEKTRUM_UART1_ISR usart1_isr
+#define SPEKTRUM_UART1_DEV USART1
 
 
 #endif /* CONFIG_STM32F4_DISCOVERY_H */