diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index f1fb1d3..0a141cd 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -42,7 +42,7 @@
 endmenu
 
 config IOMMU_IOVA
-	bool
+	tristate
 
 config OF_IOMMU
        def_bool y