diff --git a/problems/0349.两个数组的交集.md b/problems/0349.两个数组的交集.md
index 2dd52a85..7489352d 100644
--- a/problems/0349.两个数组的交集.md
+++ b/problems/0349.两个数组的交集.md
@@ -121,7 +121,7 @@ Python：
 ```python
 class Solution:
     def intersection(self, nums1: List[int], nums2: List[int]) -> List[int]:
-        return list(set(nums1) & set(nums2))    # 两个数组线变成集合，求交集后还原为数组
+        return list(set(nums1) & set(nums2))    # 两个数组先变成集合，求交集后还原为数组
 ```