diff --git a/src/mainboard/google/kukui/bootblock.c b/src/mainboard/google/kukui/bootblock.c
index 79f20a3a58..d8b5c5a59d 100644
--- a/src/mainboard/google/kukui/bootblock.c
+++ b/src/mainboard/google/kukui/bootblock.c
@@ -14,9 +14,16 @@
  */
 
 #include <bootblock_common.h>
+#include <gpio.h>
+#include <soc/gpio.h>
 #include <soc/spi.h>
 
+#define BOOTBLOCK_EN_L (GPIO(KPROW0))
+
 void bootblock_mainboard_init(void)
 {
+	/* Turn on real eMMC. */
+	gpio_output(BOOTBLOCK_EN_L, 1);
+
 	mtk_spi_init(CONFIG_BOOT_DEVICE_SPI_FLASH_BUS, SPI_PAD0_MASK, 26 * MHz);
 }