diff --git a/problems/0019.删除链表的倒数第N个节点.md b/problems/0019.删除链表的倒数第N个节点.md
index 28bb61ee..f508b523 100644
--- a/problems/0019.删除链表的倒数第N个节点.md
+++ b/problems/0019.删除链表的倒数第N个节点.md
@@ -106,7 +106,7 @@ public ListNode removeNthFromEnd(ListNode head, int n){
     ListNode slowIndex = dummyNode;
 
     // 只要快慢指针相差 n 个结点即可
-    for (int i = 0; i <= n  ; i++){ 
+    for (int i = 0; i < n  ; i++){ 
         fastIndex = fastIndex.next;
     }