diff --git a/gdk/quartz/gdkquartz.h b/gdk/quartz/gdkquartz.h
index be2cb3cd1e..24555d4a40 100644
--- a/gdk/quartz/gdkquartz.h
+++ b/gdk/quartz/gdkquartz.h
@@ -60,8 +60,11 @@ typedef enum
 GDK_AVAILABLE_IN_ALL
 GdkOSXVersion gdk_quartz_osx_version (void);
 
+GDK_AVAILABLE_IN_ALL
 GdkAtom   gdk_quartz_pasteboard_type_to_atom_libgtk_only        (NSString       *type);
+GDK_AVAILABLE_IN_ALL
 NSString *gdk_quartz_target_to_pasteboard_type_libgtk_only      (const gchar    *target);
+GDK_AVAILABLE_IN_ALL
 NSString *gdk_quartz_atom_to_pasteboard_type_libgtk_only        (GdkAtom         atom);
 
 G_END_DECLS