diff --git a/syscall/log.c b/syscall/log.c
index 689ffe0..c7c2ab4 100644
--- a/syscall/log.c
+++ b/syscall/log.c
@@ -5,8 +5,12 @@
 
 kern_status_t sys_kern_log(const char *s)
 {
+#ifdef TRACE
 	struct task *task = current_task();
 	struct thread *thread = current_thread();
 	printk("%s[%d.%d]: %s", task->t_name, task->t_id, thread->tr_id, s);
+#else
+	printk("%s", s);
+#endif
 	return KERN_OK;
 }