diff --git a/kernel/proc/proc.c b/kernel/proc/proc.c
index 063fa2c..2e82b82 100644
--- a/kernel/proc/proc.c
+++ b/kernel/proc/proc.c
@@ -232,7 +232,6 @@ static void proc_reap (struct reschedule_ctx* rctx) {
 
     if (atomic_load (&proc->state) == PROC_DEAD) {
       spin_lock (&proc->lock);
-      rbtree_delete (&proc_tree, &proc->proc_tree_link);
       list_append (reap_list, &proc->reap_link);
       spin_unlock (&proc->lock);
     }
@@ -245,7 +244,7 @@ static void proc_reap (struct reschedule_ctx* rctx) {
   struct list_node_link *reap_link, *reap_link_tmp;
   list_foreach (reap_list, reap_link, reap_link_tmp) {
     proc = list_entry (reap_link, struct proc, reap_link);
-
+    rbtree_delete (&proc_tree, &proc->proc_tree_link);
     list_remove (reap_list, &proc->reap_link);
     DEBUG ("cleanup PID %d\n", proc->pid);
     proc_cleanup (proc, rctx);