diff --git a/gtk2_ardour/automation_line.cc b/gtk2_ardour/automation_line.cc
index d5ed529ad8..ed0321a2d7 100644
--- a/gtk2_ardour/automation_line.cc
+++ b/gtk2_ardour/automation_line.cc
@@ -105,7 +105,7 @@ AutomationLine::AutomationLine (const string&                              name,
 	terminal_points_can_slide = true;
 	_height = 0;
 
-	group = new ArdourCanvas::Container (&parent);
+	group = new ArdourCanvas::Container (&parent, ArdourCanvas::Duple(0, 1.5));
 	CANVAS_DEBUG_NAME (group, "region gain envelope group");
 
 	line = new ArdourCanvas::PolyLine (group);
diff --git a/gtk2_ardour/automation_region_view.cc b/gtk2_ardour/automation_region_view.cc
index 38a98aac72..7e330949de 100644
--- a/gtk2_ardour/automation_region_view.cc
+++ b/gtk2_ardour/automation_region_view.cc
@@ -96,7 +96,7 @@ AutomationRegionView::create_line (boost::shared_ptr<ARDOUR::AutomationList> lis
 				_parameter,
 				&_source_relative_time_converter));
 	_line->set_colors();
-	_line->set_height ((uint32_t)rint(trackview.current_height() - NAME_HIGHLIGHT_SIZE));
+	_line->set_height ((uint32_t)rint(trackview.current_height() - 2.5 - NAME_HIGHLIGHT_SIZE));
 	_line->set_visibility (AutomationLine::VisibleAspects (AutomationLine::Line|AutomationLine::ControlPoints));
 	_line->set_maximum_time (_region->length());
 	_line->set_offset (_region->start ());
@@ -235,7 +235,7 @@ AutomationRegionView::set_height (double h)
 	RegionView::set_height(h);
 
 	if (_line) {
-		_line->set_height ((uint32_t)rint(h - NAME_HIGHLIGHT_SIZE));
+		_line->set_height ((uint32_t)rint(h - 2.5 - NAME_HIGHLIGHT_SIZE));
 	}
 }
 
diff --git a/gtk2_ardour/automation_time_axis.cc b/gtk2_ardour/automation_time_axis.cc
index 5798344b8a..12876c1abb 100644
--- a/gtk2_ardour/automation_time_axis.cc
+++ b/gtk2_ardour/automation_time_axis.cc
@@ -465,7 +465,7 @@ AutomationTimeAxisView::set_height (uint32_t h, TrackHeightMode m)
 	_base_rect->set_y1 (h);
 
 	if (_line) {
-		_line->set_height(h);
+		_line->set_height(h - 2.5);
 	}
 
 	if (_view) {