diff --git a/package/tstools/Config.in b/package/tstools/Config.in
index 24d4403105..6712b0f8ed 100644
--- a/package/tstools/Config.in
+++ b/package/tstools/Config.in
@@ -1,6 +1,7 @@
 config BR2_PACKAGE_TSTOOLS
 	bool "tstools"
 	depends on BR2_LARGEFILE
+	depends on BR2_USE_MMU # fork()
 	help
 	  This is a set of cross-platform command line tools for
 	  working with MPEG data
@@ -18,3 +19,4 @@ config BR2_PACKAGE_TSTOOLS
 
 comment "tstools needs a toolchain w/ largefile"
 	depends on !BR2_LARGEFILE
+	depends on BR2_USE_MMU