diff --git a/lib/System/Unix/DynamicLibrary.cpp b/lib/System/Unix/DynamicLibrary.cpp
index 24d7f5fb846..ac80a494ef9 100644
--- a/lib/System/Unix/DynamicLibrary.cpp
+++ b/lib/System/Unix/DynamicLibrary.cpp
@@ -12,6 +12,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "Unix.h"
+#include "sys/stat.h"
 
 namespace llvm {
 using namespace sys;