diff --git a/configs/samd20-xplained/include/board.h b/configs/samd20-xplained/include/board.h
index 5fc844082e7..e0058b067c7 100644
--- a/configs/samd20-xplained/include/board.h
+++ b/configs/samd20-xplained/include/board.h
@@ -203,11 +203,11 @@
 /* Resulting frequencies */
 
 #define BOARD_MCK_FREQUENCY        (BOARD_GLCK_MAIN_FREQUENCY)
-#define BOARD_CPU_FREQUENCY        (BOARD_MCK_FREQUENCY / 1)
-#define BOARD_PBA_FREQUENCY        (BOARD_MCK_FREQUENCY / 1)
-#define BOARD_PBB_FREQUENCY        (BOARD_MCK_FREQUENCY / 1)
-#define BOARD_PBC_FREQUENCY        (BOARD_MCK_FREQUENCY / 1)
-#define BOARD_PBD_FREQUENCY        (BOARD_MCK_FREQUENCY / 1)
+#define BOARD_CPU_FREQUENCY        (BOARD_MCK_FREQUENCY)
+#define BOARD_PBA_FREQUENCY        (BOARD_MCK_FREQUENCY)
+#define BOARD_PBB_FREQUENCY        (BOARD_MCK_FREQUENCY)
+#define BOARD_PBC_FREQUENCY        (BOARD_MCK_FREQUENCY)
+#define BOARD_PBD_FREQUENCY        (BOARD_MCK_FREQUENCY)
 
 /* FLASH wait states */