diff --git a/docs/reference/gdk/gdk4-sections.txt b/docs/reference/gdk/gdk4-sections.txt
index 04b77ad3b4..2a9afa8110 100644
--- a/docs/reference/gdk/gdk4-sections.txt
+++ b/docs/reference/gdk/gdk4-sections.txt
@@ -233,8 +233,6 @@ gdk_surface_create_gl_context
 gdk_surface_create_vulkan_context
 
 <SUBSECTION>
-gdk_surface_invalidate_rect
-gdk_surface_invalidate_region
 gdk_surface_queue_expose
 gdk_surface_freeze_updates
 gdk_surface_thaw_updates
diff --git a/gdk/gdkinternals.h b/gdk/gdkinternals.h
index eece0397d3..35b5cccedd 100644
--- a/gdk/gdkinternals.h
+++ b/gdk/gdkinternals.h
@@ -282,6 +282,10 @@ GdkSurface* gdk_surface_new               (GdkDisplay     *display,
                                            GdkSurfaceAttr  *attributes);
 void       _gdk_surface_destroy           (GdkSurface      *surface,
                                            gboolean        foreign_destroy);
+void       gdk_surface_invalidate_rect    (GdkSurface           *surface,
+                                           const GdkRectangle   *rect);
+void       gdk_surface_invalidate_region  (GdkSurface           *surface,
+                                           const cairo_region_t *region);
 void       _gdk_surface_clear_update_area (GdkSurface      *surface);
 void       _gdk_surface_update_size       (GdkSurface      *surface);
 gboolean   _gdk_surface_update_viewable   (GdkSurface      *surface);
diff --git a/gdk/gdksurface.h b/gdk/gdksurface.h
index 88722782db..e35a867af7 100644
--- a/gdk/gdksurface.h
+++ b/gdk/gdksurface.h
@@ -740,12 +740,6 @@ void gdk_surface_begin_move_drag_for_device   (GdkSurface     *surface,
 /* Interface for dirty-region queueing */
 GDK_AVAILABLE_IN_ALL
 void       gdk_surface_queue_expose              (GdkSurface          *surface);
-GDK_AVAILABLE_IN_ALL
-void       gdk_surface_invalidate_rect           (GdkSurface          *surface,
-                                                  const GdkRectangle   *rect);
-GDK_AVAILABLE_IN_ALL
-void       gdk_surface_invalidate_region         (GdkSurface          *surface,
-                                                  const cairo_region_t *region);
 
 GDK_AVAILABLE_IN_ALL
 void       gdk_surface_freeze_updates      (GdkSurface    *surface);