diff --git a/package/libfcgi/Config.in b/package/libfcgi/Config.in
index a622ec365f..47ff8a2d13 100644
--- a/package/libfcgi/Config.in
+++ b/package/libfcgi/Config.in
@@ -1,5 +1,6 @@
 config BR2_PACKAGE_LIBFCGI
 	bool "libfcgi"
+	depends on BR2_USE_MMU # fork()
 	help
 	  FCGI, a fastcgi developer library for C/C++