diff --git a/leetcode/leetcode1.cpp b/leetcode/leetcode1.cpp
index 72b794b..2b0ff99 100644
--- a/leetcode/leetcode1.cpp
+++ b/leetcode/leetcode1.cpp
@@ -1,7 +1,7 @@
 /*
 #include <iostream>
 #include <vector>
-#include<utility>
+#include <utility>
 #include <algorithm>
 using namespace std;