diff --git a/Source/Core/DolphinWX/NetPlay/NetPlayLauncher.h b/Source/Core/DolphinWX/NetPlay/NetPlayLauncher.h
index 513c15bedc..6f21a4006f 100644
--- a/Source/Core/DolphinWX/NetPlay/NetPlayLauncher.h
+++ b/Source/Core/DolphinWX/NetPlay/NetPlayLauncher.h
@@ -2,6 +2,8 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#pragma once
+
 #include <string>
 #include "Common/CommonTypes.h"
 #include "Common/IniFile.h"