diff --git a/package/nut/Config.in b/package/nut/Config.in
index 5b47e8bc3f..704578768c 100644
--- a/package/nut/Config.in
+++ b/package/nut/Config.in
@@ -1,5 +1,6 @@
 config BR2_PACKAGE_NUT
 	bool "nut"
+	depends on BR2_USE_MMU # fork()
 	help
 	  Network UPS tools