diff --git a/notes/Leetcode 题解 - 双指针.md b/notes/Leetcode 题解 - 双指针.md
index 4e9fe9ed..1dbd48df 100644
--- a/notes/Leetcode 题解 - 双指针.md	
+++ b/notes/Leetcode 题解 - 双指针.md	
@@ -209,7 +209,7 @@ Output: [1,2,2,3,5,6]
 public void merge(int[] nums1, int m, int[] nums2, int n) {
     int index1 = m - 1, index2 = n - 1;
     int indexMerge = m + n - 1;
-    while (index1 >= 0 || index2 >= 0) {
+    while (index2 >= 0) {
         if (index1 < 0) {
             nums1[indexMerge--] = nums2[index2--];
         } else if (index2 < 0) {