diff --git a/Bit_Manipulation/260.Single-Number-III/260.Single-Number-III.cpp b/Bit_Manipulation/260.Single-Number-III/260.Single-Number-III.cpp
index d5a308b60..bbfea14a2 100644
--- a/Bit_Manipulation/260.Single-Number-III/260.Single-Number-III.cpp
+++ b/Bit_Manipulation/260.Single-Number-III/260.Single-Number-III.cpp
@@ -2,9 +2,9 @@ class Solution {
 public:
 vector<int> singleNumber(vector<int>& nums) 
 {
- int s = 0;
+ long long s = 0;
 for (auto n:nums) s = s^n; // i.e. a^b
- int t = s^(s&(s-1)); // only keep the rightmost set bit
+ long long t = s^(s&(s-1)); // only keep the rightmost set bit
 int a = 0, b = 0;
 for (auto n:nums)
 {
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