diff --git a/kernel/Kbuild b/kernel/Kbuild
index cfc1988d..b2593a4d 100644
--- a/kernel/Kbuild
+++ b/kernel/Kbuild
@@ -27,7 +27,7 @@ mars-objs :=				\
 	sy_old/sy_generic.o		\
 	sy_old/sy_net.o			\
 	sy_old/mars_proc.o		\
-	sy_old/mars_light.o
+	sy_old/mars_main.o
 
 obj-$(CONFIG_MARS)	+= mars.o
 
diff --git a/kernel/sy_old/mars_light.c b/kernel/sy_old/mars_main.c
similarity index 100%
rename from kernel/sy_old/mars_light.c
rename to kernel/sy_old/mars_main.c