diff --git a/package/igmpproxy/Config.in b/package/igmpproxy/Config.in
index a9e4c1cc6a..37f39b289c 100644
--- a/package/igmpproxy/Config.in
+++ b/package/igmpproxy/Config.in
@@ -1,5 +1,6 @@
 config BR2_PACKAGE_IGMPPROXY
 	bool "igmpproxy"
+	depends on BR2_USE_MMU # fork()
 	depends on BR2_USE_WCHAR
 	help
 	  A simple dynamic Multicast Routing Daemon
@@ -10,4 +11,5 @@ config BR2_PACKAGE_IGMPPROXY
 	  http://sourceforge.net/projects/igmpproxy/
 
 comment "igmpproxy needs a toolchain w/ wchar"
+	depends on BR2_USE_MMU
 	depends on !BR2_USE_WCHAR