diff --git a/Source/Core/VideoBackends/Null/FramebufferManager.h b/Source/Core/VideoBackends/Null/FramebufferManager.h
index 9d8524b694..b591bf15fd 100644
--- a/Source/Core/VideoBackends/Null/FramebufferManager.h
+++ b/Source/Core/VideoBackends/Null/FramebufferManager.h
@@ -2,6 +2,8 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#pragma once
+
 #include "VideoCommon/FramebufferManagerBase.h"
 
 class XFBSource : public XFBSourceBase