diff --git a/gtk2_ardour/region_fx_line.cc b/gtk2_ardour/region_fx_line.cc
index 44945d930a..84a8c09e14 100644
--- a/gtk2_ardour/region_fx_line.cc
+++ b/gtk2_ardour/region_fx_line.cc
@@ -30,6 +30,7 @@ RegionFxLine::RegionFxLine (std::string const& name, RegionView& r, ArdourCanvas
 	: AutomationLine (name, r.get_time_axis_view(), parent, l, d)
 	, _rv (r)
 {
+	terminal_points_can_slide = false;
 	init ();
 }
 
@@ -38,6 +39,7 @@ RegionFxLine::RegionFxLine (std::string const& name, RegionView& r, ArdourCanvas
 	, _rv (r)
 	, _ac (ac)
 {
+	terminal_points_can_slide = false;
 	init ();
 }
 
diff --git a/gtk2_ardour/region_gain_line.cc b/gtk2_ardour/region_gain_line.cc
index bfabb2604c..2340c6f794 100644
--- a/gtk2_ardour/region_gain_line.cc
+++ b/gtk2_ardour/region_gain_line.cc
@@ -45,8 +45,6 @@ AudioRegionGainLine::AudioRegionGainLine (const string & name, AudioRegionView&
 	: RegionFxLine (name, r, parent, l, l->parameter ())
 	, arv (r)
 {
-
-	terminal_points_can_slide = false;
 }
 
 void