diff --git a/package/netplug/Config.in b/package/netplug/Config.in
index 5c9bca6522..593c08a948 100644
--- a/package/netplug/Config.in
+++ b/package/netplug/Config.in
@@ -1,5 +1,6 @@
 config BR2_PACKAGE_NETPLUG
 	bool "netplug"
+	depends on BR2_USE_MMU # fork()
 	help
 	  A Linux daemon that manages network interfaces in
 	  response to network cables being plugged in and out.