Index: src/notebook.c
===================================================================
--- src/notebook.c	(revision 25704)
+++ src/notebook.c	(working copy)
@@ -511,6 +511,7 @@
 	GtkWidget *scroll_window = gtk_scrolled_window_new(NULL, NULL);
 
 	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll_window), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
+	gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll_window), GTK_SHADOW_IN);
 
 	gtk_button_set_image(GTK_BUTTON(close_button), close_image);
 	gtk_button_set_relief(GTK_BUTTON(close_button), GTK_RELIEF_NONE);