diff --git a/lib/MC/WinCOFFObjectWriter.cpp b/lib/MC/WinCOFFObjectWriter.cpp
index 1a020ea..b7a6692 100644
--- a/lib/MC/WinCOFFObjectWriter.cpp
+++ b/lib/MC/WinCOFFObjectWriter.cpp
@@ -31,6 +31,8 @@
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/ErrorHandling.h"
 
+#include "llvm/System/TimeValue.h"
+
 #include <cstdio>
 
 using namespace llvm;
@@ -687,6 +689,8 @@
 
   Header.PointerToSymbolTable = offset;
 
+  Header.TimeDateStamp = sys::TimeValue::now().toEpochTime();
+
   // Write it all to disk...
   WriteFileHeader(Header);