diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index c509a92..d10cd28 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -188,6 +188,7 @@
 CONFIG_DM_MAILBOX=y
 CONFIG_SANDBOX_MBOX=y
 CONFIG_MISC=y
+CONFIG_NVMEM=y
 CONFIG_CROS_EC=y
 CONFIG_CROS_EC_I2C=y
 CONFIG_CROS_EC_LPC=y