From 42e6353338151ae9104b6d347b657a9438ccffe3 Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Fri, 14 Mar 2014 13:43:51 -0400
Subject: [PATCH] fix thinko when relabelling markers

---
 gtk2_ardour/editor_markers.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/gtk2_ardour/editor_markers.cc b/gtk2_ardour/editor_markers.cc
index 1302804cec..3fefa6af9a 100644
--- a/gtk2_ardour/editor_markers.cc
+++ b/gtk2_ardour/editor_markers.cc
@@ -334,7 +334,10 @@ Editor::update_marker_labels (ArdourCanvas::Group* group)
 
 	list<Marker*>::iterator prev = sorted.end ();
 	list<Marker*>::iterator next = i;
-	++next;
+
+	if (next != sorted.end()) {
+		++next;
+	}
 
 	while (i != sorted.end()) {