Index: lib/fuzzer/FuzzerExtFunctionsDlsymWin.cpp
===================================================================
--- lib/fuzzer/FuzzerExtFunctionsDlsymWin.cpp
+++ lib/fuzzer/FuzzerExtFunctionsDlsymWin.cpp
@@ -13,10 +13,10 @@
 
 #include "FuzzerExtFunctions.h"
 #include "FuzzerIO.h"
-#include "Windows.h"
+#include "windows.h"
 
 // This must be included after Windows.h.
-#include "Psapi.h"
+#include "psapi.h"
 
 namespace fuzzer {
 
Index: lib/fuzzer/FuzzerUtilWindows.cpp
===================================================================
--- lib/fuzzer/FuzzerUtilWindows.cpp
+++ lib/fuzzer/FuzzerUtilWindows.cpp
@@ -24,7 +24,7 @@
 #include <windows.h>
 
 // This must be included after windows.h.
-#include <Psapi.h>
+#include <psapi.h>
 
 namespace fuzzer {