diff --git a/gtk2_ardour/route_time_axis.cc b/gtk2_ardour/route_time_axis.cc
index cc51444d43..348e4fb01f 100644
--- a/gtk2_ardour/route_time_axis.cc
+++ b/gtk2_ardour/route_time_axis.cc
@@ -878,7 +878,14 @@ RouteTimeAxisView::use_copy_playlist (bool prompt)
 	if (!pl)
 		return;
 
-	name = Playlist::bump_name (pl->name(), _session);
+	name = pl->name();
+
+	do {
+		name = Playlist::bump_name (name, _session);
+	} while (_session.playlist_by_name(name));
+
+	// TODO: The prompter "new" button should be de-activated if the user
+	// specifies a playlist name which already exists in the session.
 
 	if (prompt) {
 
@@ -887,7 +894,7 @@ RouteTimeAxisView::use_copy_playlist (bool prompt)
 		prompter.set_prompt (_("Name for Playlist"));
 		prompter.set_initial_text (name);
 		prompter.add_button (Gtk::Stock::NEW, Gtk::RESPONSE_ACCEPT);
-		prompter.set_response_sensitive (Gtk::RESPONSE_ACCEPT, false);
+		prompter.set_response_sensitive (Gtk::RESPONSE_ACCEPT, true);
 		prompter.show_all ();
 		
 		switch (prompter.run ()) {