diff --git a/gtk/gtkscrolledwindow.c b/gtk/gtkscrolledwindow.c
index 81676d6ae9..a56844f542 100644
--- a/gtk/gtkscrolledwindow.c
+++ b/gtk/gtkscrolledwindow.c
@@ -2687,7 +2687,7 @@ gtk_scrolled_window_allocate_scrollbar (GtkScrolledWindow *scrolled_window,
 
   priv = scrolled_window->priv;
 
-  gtk_scrolled_window_relative_allocation (widget, &content_allocation);
+  gtk_scrolled_window_inner_allocation (widget, &content_allocation);
   sb_spacing = _gtk_scrolled_window_get_scrollbar_spacing (scrolled_window);
   gtk_widget_get_preferred_height (priv->hscrollbar, &sb_height, NULL);
   gtk_widget_get_preferred_width (priv->vscrollbar, &sb_width, NULL);