diff --git a/llvm/examples/Kaleidoscope/Chapter2/toy.cpp b/llvm/examples/Kaleidoscope/Chapter2/toy.cpp
--- a/llvm/examples/Kaleidoscope/Chapter2/toy.cpp
+++ b/llvm/examples/Kaleidoscope/Chapter2/toy.cpp
@@ -1,11 +1,10 @@
-#include "llvm/ADT/STLExtras.h"
-#include <algorithm>
 #include <cctype>
 #include <cstdio>
 #include <cstdlib>
 #include <map>
 #include <memory>
 #include <string>
+#include <utility>
 #include <vector>
 
 //===----------------------------------------------------------------------===//