diff --git a/llvm/lib/ProfileData/InstrProfWriter.cpp b/llvm/lib/ProfileData/InstrProfWriter.cpp
index f09241681b92a..0ab9f942a0858 100644
--- a/llvm/lib/ProfileData/InstrProfWriter.cpp
+++ b/llvm/lib/ProfileData/InstrProfWriter.cpp
@@ -29,6 +29,7 @@
 #include "llvm/Support/OnDiskHashTable.h"
 #include "llvm/Support/raw_ostream.h"
 #include <cstdint>
+#include <ctime>
 #include <memory>
 #include <string>
 #include <tuple>