diff --git a/arch/arm/src/samd2l2/sam_serial.c b/arch/arm/src/samd2l2/sam_serial.c
index 5fc2cf7049..040a84ad35 100644
--- a/arch/arm/src/samd2l2/sam_serial.c
+++ b/arch/arm/src/samd2l2/sam_serial.c
@@ -262,7 +262,7 @@ static void sam_shutdown(struct uart_dev_s *dev);
 static int  sam_attach(struct uart_dev_s *dev);
 static void sam_detach(struct uart_dev_s *dev);
 static int  sam_ioctl(struct file *filep, int cmd, unsigned long arg);
-static int  sam_receive(struct uart_dev_s *dev, uint32_t *status);
+static int  sam_receive(struct uart_dev_s *dev, unsigned int *status);
 static void sam_rxint(struct uart_dev_s *dev, bool enable);
 static bool sam_rxavailable(struct uart_dev_s *dev);
 static void sam_send(struct uart_dev_s *dev, int ch);
@@ -822,7 +822,7 @@ static int sam_ioctl(struct file *filep, int cmd, unsigned long arg)
  *
  ****************************************************************************/
 
-static int sam_receive(struct uart_dev_s *dev, uint32_t *status)
+static int sam_receive(struct uart_dev_s *dev, unsigned int *status)
 {
   struct sam_dev_s *priv = (struct sam_dev_s *)dev->priv;