diff --git a/syscall/log.c b/syscall/log.c
index 25c9bbf..328fac6 100644
--- a/syscall/log.c
+++ b/syscall/log.c
@@ -4,6 +4,6 @@
 kern_status_t sys_kern_log(const char *s)
 {
 	struct task *task = current_task();
-	printk("%s: %s", task->t_name, task->t_id, s);
+	printk("%s[%d]: %s", task->t_name, task->t_id, s);
 	return KERN_OK;
 }