diff --git a/thirdparty/oidn/0001-window.h-case-sensitive.patch b/thirdparty/oidn/0001-window.h-case-sensitive.patch
new file mode 100644
index 0000000000..7b9c8e96c1
--- /dev/null
+++ b/thirdparty/oidn/0001-window.h-case-sensitive.patch
@@ -0,0 +1,13 @@
+diff --git a/thirdparty/oidn/common/platform.h b/thirdparty/oidn/common/platform.h
+index 205ac8981d..9373b617b5 100644
+--- a/thirdparty/oidn/common/platform.h
++++ b/thirdparty/oidn/common/platform.h
+@@ -19,7 +19,7 @@
+ #if defined(_WIN32)
+   #define WIN32_LEAN_AND_MEAN
+   #define NOMINMAX
+-  #include <Windows.h>
++  #include <windows.h>
+ #elif defined(__APPLE__)
+   #include <sys/sysctl.h>
+ #endif
diff --git a/thirdparty/oidn/common/platform.h b/thirdparty/oidn/common/platform.h
index 205ac8981d..9373b617b5 100644
--- a/thirdparty/oidn/common/platform.h
+++ b/thirdparty/oidn/common/platform.h
@@ -19,7 +19,7 @@
 #if defined(_WIN32)
   #define WIN32_LEAN_AND_MEAN
   #define NOMINMAX
-  #include <Windows.h>
+  #include <windows.h>
 #elif defined(__APPLE__)
   #include <sys/sysctl.h>
 #endif