diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 1331f3186f2a..d2f73bb4121b 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -2225,6 +2225,7 @@ config TEST_DIV64
 config TEST_IOV_ITER
 	tristate "Test iov_iter operation" if !KUNIT_ALL_TESTS
 	depends on KUNIT
+	depends on MMU
 	default KUNIT_ALL_TESTS
 	help
 	  Enable this to turn on testing of the operation of the I/O iterator