diff --git a/Source/NSSpellChecker.m b/Source/NSSpellChecker.m
index afff86e6d..4dcdbefa2 100644
--- a/Source/NSSpellChecker.m
+++ b/Source/NSSpellChecker.m
@@ -47,6 +47,9 @@
 #include <AppKit/NSBrowser.h>
 #include <AppKit/NSBrowserCell.h>
 #include <AppKit/NSPopUpButton.h>
+#include <AppKit/NSGraphics.h>
+#include <AppKit/NSWindow.h>
+#include <AppKit/NSPanel.h>
 
 // prototype for function to create name for server
 NSString *GSSpellServerName(NSString *checkerDictionary, NSString *language);
diff --git a/Source/NSSplitView.m b/Source/NSSplitView.m
index 4abe727de..f77ef344a 100644
--- a/Source/NSSplitView.m
+++ b/Source/NSSplitView.m
@@ -45,6 +45,8 @@
 #include <AppKit/NSImage.h>
 #include <AppKit/NSEvent.h>
 #include <AppKit/NSSplitView.h>
+#include <AppKit/NSGraphics.h>
+#include <AppKit/NSWindow.h>
 
 #include "AppKit/DPSOperators.h"