diff --git a/boards/samr21-xpro/board.c b/boards/samr21-xpro/board.c
index d79525d62db1..089ef01682ac 100644
--- a/boards/samr21-xpro/board.c
+++ b/boards/samr21-xpro/board.c
@@ -35,7 +35,7 @@ void board_antenna_config(uint8_t antenna)
     }
 }
 
-void board_init(void)
+void board_samr21_xpro_init(void)
 {
     /* initialize the on-board LED */
     gpio_init(LED0_PIN, GPIO_OUT);
@@ -50,3 +50,8 @@ void board_init(void)
     /* initialize the CPU */
     cpu_init();
 }
+
+void __attribute__((weak)) board_init(void)
+{
+    board_samr21_xpro_init();
+}