diff --git a/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F303K8/PeripheralNames.h b/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F303K8/PeripheralNames.h
index 8dabf2d47b..8293638c54 100644
--- a/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F303K8/PeripheralNames.h
+++ b/hal/targets/hal/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F303K8/PeripheralNames.h
@@ -48,7 +48,7 @@ typedef enum {
 
 typedef enum {
     UART_1 = (int)USART1_BASE,
-    UART_2 = (int)USART2_BASE
+    UART_2 = (int)USART2_BASE,
 } UARTName;
 
 #define STDIO_UART_TX  PA_2