diff --git a/STL/STL.md b/STL/STL.md
index ba52f9b..d1bd8c1 100644
--- a/STL/STL.md
+++ b/STL/STL.md
@@ -62,7 +62,7 @@ int main()
 {
     std::array<int, 5> myarray = {2, 16, 77,34, 50};
     std::cout << "myarray contains:";
-    for(auto it = myarray.begin(); it != myarray.end(); ++i)
+    for(auto it = myarray.begin(); it != myarray.end(); ++it)
         std::cout << ' ' << *it;
     std::cout << '\n';