diff --git a/src/unlocker/main.cpp b/src/unlocker/main.cpp
index 936f3fc..f4a62ad 100644
--- a/src/unlocker/main.cpp
+++ b/src/unlocker/main.cpp
@@ -2,7 +2,7 @@
 
 #include <nerutils/log.h>
 
-#include <Windows.h>
+#include <windows.h>
 #include <wininet.h>
 #include <fstream>
 #include <iostream>