diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index d07a7f3..9385857 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -168,6 +168,7 @@
 CONFIG_I2C_ARB_GPIO_CHALLENGE=y
 CONFIG_CROS_EC_KEYB=y
 CONFIG_I8042_KEYB=y
+CONFIG_IOMMU=y
 CONFIG_LED=y
 CONFIG_LED_BLINK=y
 CONFIG_LED_GPIO=y