diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 7817bbe0cfac..c4488ce8c2fa 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -48,7 +48,7 @@ config MMU
 
 config ZONE_DMA32
 	bool
-	default y
+	default y if 64BIT
 
 config PAGE_OFFSET
 	hex