diff --git a/gtk/gtkpixelcache.c b/gtk/gtkpixelcache.c
index fd44f206c4..2529f11845 100644
--- a/gtk/gtkpixelcache.c
+++ b/gtk/gtkpixelcache.c
@@ -90,6 +90,18 @@ _gtk_pixel_cache_set_extra_size (GtkPixelCache *cache,
   cache->extra_height = extra_height ? extra_height : DEFAULT_EXTRA_SIZE;
 }
 
+void
+_gtk_pixel_cache_get_extra_size (GtkPixelCache *cache,
+                                 guint         *extra_width,
+                                 guint         *extra_height)
+{
+  if (extra_width)
+    *extra_width = cache->extra_width;
+
+  if (extra_height)
+    *extra_height = cache->extra_height;
+}
+
 void
 _gtk_pixel_cache_set_content (GtkPixelCache   *cache,
 			      cairo_content_t  content)
diff --git a/gtk/gtkpixelcacheprivate.h b/gtk/gtkpixelcacheprivate.h
index 79b60ced26..69635b7df2 100644
--- a/gtk/gtkpixelcacheprivate.h
+++ b/gtk/gtkpixelcacheprivate.h
@@ -41,6 +41,9 @@ void           _gtk_pixel_cache_draw           (GtkPixelCache         *cache,
                                                 cairo_rectangle_int_t *canvas_rect,
                                                 GtkPixelCacheDrawFunc  draw,
                                                 gpointer               user_data);
+void           _gtk_pixel_cache_get_extra_size (GtkPixelCache         *cache,
+                                                guint                 *extra_width,
+                                                guint                 *extra_height);
 void           _gtk_pixel_cache_set_extra_size (GtkPixelCache         *cache,
                                                 guint                  extra_width,
                                                 guint                  extra_height);