diff --git a/Source/Contents/Messenger/MessengerMember.cpp b/Source/Contents/Messenger/MessengerMember.cpp
index 6ff96f09..379d977a 100644
--- a/Source/Contents/Messenger/MessengerMember.cpp
+++ b/Source/Contents/Messenger/MessengerMember.cpp
@@ -30,6 +30,10 @@
 #include "File/ShortcutFilename.h"
 #include "UI/Layout/WindowSnapping.h"
 #include "UI/Buttons/UITextButton.h"
+#include "UI/Window/WindowBorder.h"
+#include "Contents/PlayerNameDictionary.h"
+#include "Utility/Text/FormatString.h"
+#include "Resource/SkinPalette.h"
 
 #include <algorithm>
 #include <cstdio>