diff --git a/gtk/gtkaboutdialog.c b/gtk/gtkaboutdialog.c
index 65ddfa08f1..4d54b639c0 100644
--- a/gtk/gtkaboutdialog.c
+++ b/gtk/gtkaboutdialog.c
@@ -2357,7 +2357,7 @@ create_credits_page (GtkAboutDialog *about)
   priv->credits_page = gtk_notebook_append_page (GTK_NOTEBOOK (priv->notebook), page_vbox, NULL);
 
   sw = gtk_scrolled_window_new (NULL, NULL);
-  gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw), GTK_SHADOW_NONE);
+  gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw), GTK_SHADOW_IN);
   gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                   GTK_POLICY_NEVER,
                                   GTK_POLICY_AUTOMATIC);