diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 0c99735df6949..34047169bd06d 100644
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -476,7 +476,7 @@ config HW_RANDOM_KEYSTONE
 
 config HW_RANDOM_CCTRNG
 	tristate "Arm CryptoCell True Random Number Generator support"
-	depends on HAS_IOMEM
+	depends on HAS_IOMEM && OF
 	default HW_RANDOM
 	help
 	  This driver provides support for the True Random Number