diff --git a/drivers/serial/uart_stellaris.c b/drivers/serial/uart_stellaris.c
index 06754b4b57e..7bab9bf9546 100644
--- a/drivers/serial/uart_stellaris.c
+++ b/drivers/serial/uart_stellaris.c
@@ -153,7 +153,7 @@ struct uart_stellaris_dev_data_t {
 #define UARTMIS_RXMIS 0x00000010
 #define UARTMIS_TXMIS 0x00000020
 
-static struct uart_driver_api uart_stellaris_driver_api;
+static const struct uart_driver_api uart_stellaris_driver_api;
 
 /**
  * @brief Set the baud rate
@@ -611,7 +611,7 @@ void uart_stellaris_isr(void *arg)
 #endif /* CONFIG_UART_INTERRUPT_DRIVEN */
 
 
-static struct uart_driver_api uart_stellaris_driver_api = {
+static const struct uart_driver_api uart_stellaris_driver_api = {
 	.poll_in = uart_stellaris_poll_in,
 	.poll_out = uart_stellaris_poll_out,