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-rw-r--r--gtk2_ardour/editor_markers.cc5
1 files changed, 4 insertions, 1 deletions
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()) {