diff --git a/package/boa/Config.in b/package/boa/Config.in
index 48943ff04..982833aef 100644
--- a/package/boa/Config.in
+++ b/package/boa/Config.in
@@ -1,5 +1,6 @@
 config BR2_PACKAGE_BOA
 	bool "boa"
+	depends on BR2_USE_MMU # uses fork()
 	help
 	  A very small and very fast http daemon.  Not intended as
 	  a feature-packed server.