diff --git a/lab5/user/lab5/apps/init.c b/lab5/user/lab5/apps/init.c
index bcda0f5..dd83e0e 100644
--- a/lab5/user/lab5/apps/init.c
+++ b/lab5/user/lab5/apps/init.c
@@ -91,7 +91,7 @@ int do_cd(char *cmdline)
 
 int do_top()
 {
-	// TODO: your code here
+    usys_top();
 	return 0;
 }