diff --git a/package/sane-backends/Config.in b/package/sane-backends/Config.in
index 04222fc6d8..8156e858dc 100644
--- a/package/sane-backends/Config.in
+++ b/package/sane-backends/Config.in
@@ -1,5 +1,6 @@
 config BR2_PACKAGE_SANE_BACKENDS
 	bool "sane-backends"
+	depends on BR2_USE_MMU # fork()
 	help
 	  SANE - Scanner Access Now Easy