diff --git a/meta-aspeed/recipes-kernel/linux/linux-aspeed/tpm/tpm2.cfg b/meta-aspeed/recipes-kernel/linux/linux-aspeed/tpm/tpm2.cfg
index 8a1990d..b567f71 100644
--- a/meta-aspeed/recipes-kernel/linux/linux-aspeed/tpm/tpm2.cfg
+++ b/meta-aspeed/recipes-kernel/linux/linux-aspeed/tpm/tpm2.cfg
@@ -1,3 +1,4 @@
+CONFIG_HW_RANDOM=y
 CONFIG_HW_RANDOM_TPM=y
 CONFIG_TCG_TPM=y
 CONFIG_TCG_TIS_CORE=y