diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index ba22849ee3ec..5d5e32e11bba 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -53,6 +53,9 @@ config MMU
 	bool
 	default y
 
+config ARCH_DMA_ADDR_T_64BIT
+	def_bool y
+
 config NEED_DMA_MAP_STATE
 	def_bool y