diff --git a/kernel/fork.c b/kernel/fork.c
index 0900f2f..4e4b344 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1029,7 +1029,7 @@
 {
 	raw_spin_lock_init(&p->pi_lock);
 #ifdef CONFIG_RT_MUTEXES
-	plist_head_init_raw(&p->pi_waiters, &p->pi_lock);
+	plist_head_init(&p->pi_waiters);
 	p->pi_blocked_on = NULL;
 #endif
 }