diff --git a/gtk2_ardour/automation_time_axis.cc b/gtk2_ardour/automation_time_axis.cc
index 275a3bb854..fbe8d8925c 100644
--- a/gtk2_ardour/automation_time_axis.cc
+++ b/gtk2_ardour/automation_time_axis.cc
@@ -1176,7 +1176,7 @@ AutomationTimeAxisView::cut_copy_clear_one (AutomationLine& line, Selection& sel
 		for (AutomationList::iterator x = what_we_got->begin(); x != what_we_got->end(); ++x) {
 			timepos_t when = (*x)->when;
 			double val  = (*x)->value;
-			line.model_to_view_coord_y (val);
+			val = line.model_to_view_coord_y (val);
 			(*x)->when = when;
 			(*x)->value = val;
 		}