diff --git a/llvm/examples/Kaleidoscope/Chapter4/toy.cpp b/llvm/examples/Kaleidoscope/Chapter4/toy.cpp
index 4f77ec862b1b..e9fc5a05fb00 100644
--- a/llvm/examples/Kaleidoscope/Chapter4/toy.cpp
+++ b/llvm/examples/Kaleidoscope/Chapter4/toy.cpp
@@ -7,6 +7,7 @@
 #include "llvm/IR/Verifier.h"
 #include "llvm/Support/TargetSelect.h"
 #include "llvm/Transforms/Scalar.h"
+#include "llvm/Transforms/Scalar/GVN.h"
 #include <cctype>
 #include <cstdio>
 #include <map>
diff --git a/llvm/examples/Kaleidoscope/Chapter5/toy.cpp b/llvm/examples/Kaleidoscope/Chapter5/toy.cpp
index eeca4775eeb1..afcb28ae247e 100644
--- a/llvm/examples/Kaleidoscope/Chapter5/toy.cpp
+++ b/llvm/examples/Kaleidoscope/Chapter5/toy.cpp
@@ -7,6 +7,7 @@
 #include "llvm/IR/Verifier.h"
 #include "llvm/Support/TargetSelect.h"
 #include "llvm/Transforms/Scalar.h"
+#include "llvm/Transforms/Scalar/GVN.h"
 #include <cctype>
 #include <cstdio>
 #include <map>
diff --git a/llvm/examples/Kaleidoscope/Chapter6/toy.cpp b/llvm/examples/Kaleidoscope/Chapter6/toy.cpp
index 4d04f7e888af..bc6ffb776687 100644
--- a/llvm/examples/Kaleidoscope/Chapter6/toy.cpp
+++ b/llvm/examples/Kaleidoscope/Chapter6/toy.cpp
@@ -7,6 +7,7 @@
 #include "llvm/IR/Verifier.h"
 #include "llvm/Support/TargetSelect.h"
 #include "llvm/Transforms/Scalar.h"
+#include "llvm/Transforms/Scalar/GVN.h"
 #include <cctype>
 #include <cstdio>
 #include <map>
diff --git a/llvm/examples/Kaleidoscope/Chapter7/toy.cpp b/llvm/examples/Kaleidoscope/Chapter7/toy.cpp
index 5c0094013d97..6c2087927565 100644
--- a/llvm/examples/Kaleidoscope/Chapter7/toy.cpp
+++ b/llvm/examples/Kaleidoscope/Chapter7/toy.cpp
@@ -7,6 +7,7 @@
 #include "llvm/IR/Verifier.h"
 #include "llvm/Support/TargetSelect.h"
 #include "llvm/Transforms/Scalar.h"
+#include "llvm/Transforms/Scalar/GVN.h"
 #include <cctype>
 #include <cstdio>
 #include <map>