diff --git a/src/filesys/Make.vars b/src/filesys/Make.vars
index b3aa0059bd15f7245ae14abf9eb4cc56bc931c87..34012720dad547909ec7e0138da41229dec840b1 100644
--- a/src/filesys/Make.vars
+++ b/src/filesys/Make.vars
@@ -11,3 +11,4 @@ SIMULATOR = --qemu
 #KERNEL_SUBDIRS += vm
 #TEST_SUBDIRS += tests/vm
 #GRADING_FILE = $(SRCDIR)/tests/filesys/Grading.with-vm
+