diff --git a/llvm/include/llvm/Analysis/DominanceFrontier.h b/llvm/include/llvm/Analysis/DominanceFrontier.h
index f67929c997f93..cef5e03b3b7a7 100644
--- a/llvm/include/llvm/Analysis/DominanceFrontier.h
+++ b/llvm/include/llvm/Analysis/DominanceFrontier.h
@@ -26,7 +26,6 @@
 #include <map>
 #include <set>
 #include <utility>
-#include <vector>
 
 namespace llvm {
 
diff --git a/llvm/include/llvm/CodeGen/MachineDominanceFrontier.h b/llvm/include/llvm/CodeGen/MachineDominanceFrontier.h
index f7bbd07a63ab5..e3e679608784a 100644
--- a/llvm/include/llvm/CodeGen/MachineDominanceFrontier.h
+++ b/llvm/include/llvm/CodeGen/MachineDominanceFrontier.h
@@ -14,7 +14,6 @@
 #include "llvm/CodeGen/MachineBasicBlock.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
 #include "llvm/Support/GenericDomTree.h"
-#include <vector>
 
 namespace llvm {