diff --git a/drivers/tty/serial/uartlite.c b/drivers/tty/serial/uartlite.c
index 7dbd0c471d921..09379db613d8b 100644
--- a/drivers/tty/serial/uartlite.c
+++ b/drivers/tty/serial/uartlite.c
@@ -32,7 +32,7 @@
  * Register definitions
  *
  * For register details see datasheet:
- * http://www.xilinx.com/support/documentation/ip_documentation/opb_uartlite.pdf
+ * https://www.xilinx.com/support/documentation/ip_documentation/opb_uartlite.pdf
  */
 
 #define ULITE_RX		0x00