diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 7c76b4d664d40d4a719f405b9d27b6523a446450..b81e0d990a169032b23077c2b85e0894ad3005b2 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -32,6 +32,7 @@ config ARCH_RV32I
 config ARCH_RV64I
 	bool "RV64I"
 	select 64BIT
+	select PHYS_64BIT
 	help
 	  Choose this option to target the RV64I base integer instruction set.