diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig
index 4925aa9..82c202b 100644
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -13,13 +13,16 @@
 if MTD
 
 config MTD_TESTS
-	tristate "MTD tests support"
+	tristate "MTD tests support (DANGEROUS)"
 	depends on m
 	help
 	  This option includes various MTD tests into compilation. The tests
 	  should normally be compiled as kernel modules. The modules perform
 	  various checks and verifications when loaded.
 
+	  WARNING: some of the tests will ERASE entire MTD device which they
+	  test. Do not use these tests unless you really know what you do.
+
 config MTD_REDBOOT_PARTS
 	tristate "RedBoot partition table parsing"
 	---help---