diff --git a/package/netkitbase/Config.in b/package/netkitbase/Config.in
index dd9166ce14..40833ad3a0 100644
--- a/package/netkitbase/Config.in
+++ b/package/netkitbase/Config.in
@@ -1,6 +1,7 @@
 config BR2_PACKAGE_NETKITBASE
 	bool "netkitbase"
 	depends on BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	depends on BR2_USE_MMU # fork()
 	depends on BR2_DEPRECATED
 	help
 	  Old-style inetd.