diff --git a/llvm/lib/DebugInfo/DWARFDebugArangeSet.cpp b/llvm/lib/DebugInfo/DWARFDebugArangeSet.cpp
index 76e02f70d848..a3e2e62104c7 100644
--- a/llvm/lib/DebugInfo/DWARFDebugArangeSet.cpp
+++ b/llvm/lib/DebugInfo/DWARFDebugArangeSet.cpp
@@ -10,6 +10,7 @@
 #include "DWARFDebugArangeSet.h"
 #include "llvm/Support/Format.h"
 #include "llvm/Support/raw_ostream.h"
+#include <algorithm>
 #include <cassert>
 using namespace llvm;