diff --git a/lib/Kconfig b/lib/Kconfig
index 7dd777b..e888c29 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -360,6 +360,7 @@
 config TPM
 	bool "Trusted Platform Module (TPM) Support"
 	depends on DM
+	imply DM_RNG
 	help
 	  This enables support for TPMs which can be used to provide security
 	  features for your board. The TPM can be connected via LPC or I2C