diff --git a/os/hal/boards/ATSAMA5D2_XULT_SEC/board.c b/os/hal/boards/ATSAMA5D2_XULT_SEC/board.c
index c20cfd8b3..9bd158384 100644
--- a/os/hal/boards/ATSAMA5D2_XULT_SEC/board.c
+++ b/os/hal/boards/ATSAMA5D2_XULT_SEC/board.c
@@ -187,7 +187,9 @@ void boardInit(void) {
   /* Enabling write protection.  */
   pmcEnableWP();
 
-  _PIOA->PIO_WPMR = 0x50494F00;
+  /* Disabling write protection */
+  _PIOA->PIO_WPMR = PIO_WPMR_WPKEY_PASSWD;
+
 #endif /* SAMA_HAL_IS_SECURE */
 
   /* Configuring all PIO A pads with default configuration.  */
@@ -255,7 +257,4 @@ void boardInit(void) {
 #endif /* SAMA_HAL_IS_SECURE */
     i++;
   }
-#if SAMA_HAL_IS_SECURE
-  _PIOA->PIO_WPMR = 0x50494F01;
-#endif /* SAMA_HAL_IS_SECURE */
 }