diff --git a/src/mainboard/google/oak/bootblock.c b/src/mainboard/google/oak/bootblock.c
index 325889cbb3..04a3a550ec 100644
--- a/src/mainboard/google/oak/bootblock.c
+++ b/src/mainboard/google/oak/bootblock.c
@@ -81,7 +81,8 @@ void bootblock_mainboard_init(void)
 	nor_set_gpio_pinmux();
 
 	/* SPI_LEVEL_ENABLE: Enable 1.8V to 3.3V level shifter for EC SPI bus */
-	if (board_id() + CONFIG_BOARD_ID_ADJUSTMENT > 4)
+	if (board_id() + CONFIG_BOARD_ID_ADJUSTMENT > 4 &&
+	    board_id() + CONFIG_BOARD_ID_ADJUSTMENT < 8)
 		gpio_output(PAD_SRCLKENAI2, 1);
 
 	/* Init i2c bus 2 Timing register for TPM */