diff --git a/package/tar/Config.in b/package/tar/Config.in
index b0be7a389f..caf12d6f16 100644
--- a/package/tar/Config.in
+++ b/package/tar/Config.in
@@ -12,4 +12,5 @@ config BR2_PACKAGE_TAR
 
 comment "tar needs a toolchain w/ wchar"
 	depends on !BR2_USE_WCHAR
+	depends on BR2_USE_MMU
 	depends on BR2_PACKAGE_BUSYBOX_SHOW_OTHERS