diff --git a/src/filesys/Make.vars b/src/filesys/Make.vars
new file mode 100644
index 0000000000000000000000000000000000000000..b3aa0059bd15f7245ae14abf9eb4cc56bc931c87
--- /dev/null
+++ b/src/filesys/Make.vars
@@ -0,0 +1,13 @@
+# -*- makefile -*-
+
+kernel.bin: DEFINES = -DUSERPROG -DFILESYS
+KERNEL_SUBDIRS = threads devices lib lib/kernel userprog filesys
+TEST_SUBDIRS = tests/userprog tests/filesys/base tests/filesys/extended
+GRADING_FILE = $(SRCDIR)/tests/filesys/Grading.no-vm
+SIMULATOR = --qemu
+
+# Uncomment the lines below to enable VM.
+#kernel.bin: DEFINES += -DVM
+#KERNEL_SUBDIRS += vm
+#TEST_SUBDIRS += tests/vm
+#GRADING_FILE = $(SRCDIR)/tests/filesys/Grading.with-vm