diff --git a/package/rlwrap/Config.in b/package/rlwrap/Config.in
index 0cb3e33fa7..4e18dfde52 100644
--- a/package/rlwrap/Config.in
+++ b/package/rlwrap/Config.in
@@ -1,5 +1,6 @@
 config BR2_PACKAGE_RLWRAP
 	bool "rlwrap"
+	depends on BR2_USE_MMU # fork()
 	select BR2_PACKAGE_READLINE
 	help
 	  rlwrap is a 'readline wrapper', a small utility that uses the