diff --git a/compiler-rt/lib/fuzzer/FuzzerExtraCountersWindows.cpp b/compiler-rt/lib/fuzzer/FuzzerExtraCountersWindows.cpp
index 19101848408b..102f5febdaec 100644
--- a/compiler-rt/lib/fuzzer/FuzzerExtraCountersWindows.cpp
+++ b/compiler-rt/lib/fuzzer/FuzzerExtraCountersWindows.cpp
@@ -12,7 +12,7 @@
 #include <cstdint>
 
 #if LIBFUZZER_WINDOWS
-#include <Windows.h>
+#include <windows.h>
 
 namespace fuzzer {