diff --git a/clang/tools/libclang/FatalErrorHandler.cpp b/clang/tools/libclang/FatalErrorHandler.cpp
index 73864754c065..506b047c1b13 100644
--- a/clang/tools/libclang/FatalErrorHandler.cpp
+++ b/clang/tools/libclang/FatalErrorHandler.cpp
@@ -9,6 +9,7 @@
 
 #include "clang-c/FatalErrorHandler.h"
 #include "llvm/Support/ErrorHandling.h"
+#include <stdio.h>
 #include <stdlib.h>
 
 static void aborting_fatal_error_handler(void *, const char *reason,