diff --git a/Headers/Additions/GNUstepGUI/GSHbox.h b/Headers/Additions/GNUstepGUI/GSHbox.h
index ca5867c38..8b370ae7b 100644
--- a/Headers/Additions/GNUstepGUI/GSHbox.h
+++ b/Headers/Additions/GNUstepGUI/GSHbox.h
@@ -169,6 +169,7 @@
 
   </unit>
 */
+APPKIT_EXPORT_CLASS
 @interface GSHbox: GSTable
 {
   BOOL _haveViews;
diff --git a/Headers/Additions/GNUstepGUI/GSPrintOperation.h b/Headers/Additions/GNUstepGUI/GSPrintOperation.h
index 430dcc881..cd5ae3a0c 100644
--- a/Headers/Additions/GNUstepGUI/GSPrintOperation.h
+++ b/Headers/Additions/GNUstepGUI/GSPrintOperation.h
@@ -44,7 +44,7 @@
 @class NSView;
 @class NSPrintInfo;
 
-
+APPKIT_EXPORT_CLASS
 @interface GSPrintOperation: NSPrintOperation
 {
 }
diff --git a/Headers/Additions/GNUstepGUI/GSTable.h b/Headers/Additions/GNUstepGUI/GSTable.h
index 0c0377ffc..5f29a7f75 100644
--- a/Headers/Additions/GNUstepGUI/GSTable.h
+++ b/Headers/Additions/GNUstepGUI/GSTable.h
@@ -171,6 +171,7 @@
   </section>
   </unit>
 */
+APPKIT_EXPORT_CLASS
 @interface GSTable: NSView
 {
   int _numberOfRows;
diff --git a/Source/GSGuiPrivate.h b/Source/GSGuiPrivate.h
index fa21f1868..78c513a7c 100644
--- a/Source/GSGuiPrivate.h
+++ b/Source/GSGuiPrivate.h
@@ -32,6 +32,7 @@
 
 #import <Foundation/NSBundle.h>
 #import <Foundation/NSCoder.h>
+#import "AppKit/AppKitDefines.h"
 #include "GNUstepBase/GSConfig.h"
 #include <math.h>
 
@@ -40,7 +41,7 @@
  * Should be only used inside the gnustep-gui library.  Implemented
  * in Source/NSApplication.m
  */
-NSBundle *GSGuiBundle (void);
+APPKIT_EXPORT NSBundle *GSGuiBundle (void);
 
 /*
  * Localize a message of the gnustep-gui library.