diff --git a/Target/Source/ARMCM7_STM32F7/rs232.c b/Target/Source/ARMCM7_STM32F7/rs232.c
index 7d0d3a45..184461aa 100644
--- a/Target/Source/ARMCM7_STM32F7/rs232.c
+++ b/Target/Source/ARMCM7_STM32F7/rs232.c
@@ -62,7 +62,7 @@
 #define USART_CHANNEL   UART5
 #elif (BOOT_COM_RS232_CHANNEL_INDEX == 5)
 /** \brief Set UART base address to UART6. */
-#define USART_CHANNEL   UART6
+#define USART_CHANNEL   USART6
 #elif (BOOT_COM_RS232_CHANNEL_INDEX == 6)
 /** \brief Set UART base address to UART7. */
 #define USART_CHANNEL   UART7