diff --git a/arch/arm/src/imxrt/imxrt_serial.c b/arch/arm/src/imxrt/imxrt_serial.c
index 0cd9e833abd..1d713abd2cd 100644
--- a/arch/arm/src/imxrt/imxrt_serial.c
+++ b/arch/arm/src/imxrt/imxrt_serial.c
@@ -366,7 +366,7 @@ static int  imxrt_attach(struct uart_dev_s *dev);
 static void imxrt_detach(struct uart_dev_s *dev);
 static int  imxrt_interrupt(int irq, void *context, FAR void *arg);
 static int  imxrt_ioctl(struct file *filep, int cmd, unsigned long arg);
-static int  imxrt_receive(struct uart_dev_s *dev, uint32_t *status);
+static int  imxrt_receive(struct uart_dev_s *dev, unsigned int *status);
 static void imxrt_rxint(struct uart_dev_s *dev, bool enable);
 static bool imxrt_rxavailable(struct uart_dev_s *dev);
 static void imxrt_send(struct uart_dev_s *dev, int ch);
@@ -1385,7 +1385,7 @@ static int imxrt_ioctl(struct file *filep, int cmd, unsigned long arg)
  *
  ****************************************************************************/
 
-static int imxrt_receive(struct uart_dev_s *dev, uint32_t *status)
+static int imxrt_receive(struct uart_dev_s *dev, unsigned int *status)
 {
   struct imxrt_uart_s *priv = (struct imxrt_uart_s *)dev->priv;
   uint32_t rxd;