diff --git a/drivers/mailbox/Kconfig b/drivers/mailbox/Kconfig
index 546d05f4358a7c452ee80366b3ae782e685fd7ef..b2bbe8659beda5ad8182b5f4ff7bbefeda970459 100644
--- a/drivers/mailbox/Kconfig
+++ b/drivers/mailbox/Kconfig
@@ -81,6 +81,7 @@ config STI_MBOX
 config MAILBOX_TEST
 	tristate "Mailbox Test Client"
 	depends on OF
+	depends on HAS_IOMEM
 	help
 	  Test client to help with testing new Controller driver
 	  implementations.