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-rw-r--r--gtk2_ardour/mini_timeline.cc2
1 files changed, 2 insertions, 0 deletions
diff --git a/gtk2_ardour/mini_timeline.cc b/gtk2_ardour/mini_timeline.cc
index a49999862e..6d77999491 100644
--- a/gtk2_ardour/mini_timeline.cc
+++ b/gtk2_ardour/mini_timeline.cc
@@ -671,9 +671,11 @@ MiniTimeline::on_scroll_event (GdkEventScroll *ev)
switch (ev->direction) {
case GDK_SCROLL_UP:
+ case GDK_SCROLL_RIGHT:
when += scale * _session->nominal_frame_rate ();
break;
case GDK_SCROLL_DOWN:
+ case GDK_SCROLL_LEFT:
when -= scale * _session->nominal_frame_rate ();
break;
default: