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-rw-r--r--gtk2_ardour/editor_drag.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/gtk2_ardour/editor_drag.cc b/gtk2_ardour/editor_drag.cc
index 5852f10b43..20e8b4f054 100644
--- a/gtk2_ardour/editor_drag.cc
+++ b/gtk2_ardour/editor_drag.cc
@@ -3430,7 +3430,7 @@ void
BBTRulerDrag::setup_pointer_frame_offset ()
{
TempoMap& map (_editor->session()->tempo_map());
- const double beat_at_frame = map.beat_at_frame (raw_grab_frame());
+ const double beat_at_frame = max (0.0, map.beat_at_frame (raw_grab_frame()));
const uint32_t divisions = _editor->get_grid_beat_divisions (0);
double beat = 0.0;