diff --git a/libs/widgets/ardour_button.cc b/libs/widgets/ardour_button.cc
index a1081920ed..c376eec21f 100644
--- a/libs/widgets/ardour_button.cc
+++ b/libs/widgets/ardour_button.cc
@@ -565,7 +565,7 @@ ArdourButton::render (Cairo::RefPtr<Cairo::Context> const& ctx, cairo_rectangle_
 		const float triw2 = ceil(.577 * _diameter * .5); // 1/sqrt(3) Equilateral triangle
 		//menu arrow
 		cairo_set_source_rgba (cr, 1, 1, 1, 0.4);
-		cairo_move_to(cr, get_width() - triw2 - 5, rint((get_height() + trih) * .5));
+		cairo_move_to(cr, get_width() - triw2 - 5 * scale, rint((get_height() + trih) * .5));
 		cairo_rel_line_to(cr, -triw2, -trih);
 		cairo_rel_line_to(cr, 2. * triw2, 0);
 		cairo_close_path(cr);
@@ -573,7 +573,7 @@ ArdourButton::render (Cairo::RefPtr<Cairo::Context> const& ctx, cairo_rectangle_
 		cairo_set_source_rgba (cr, 1, 1, 1, 0.4);
 		cairo_fill(cr);
 
-		cairo_move_to(cr, get_width() - triw2 - 5, rint((get_height() + trih) * .5));
+		cairo_move_to(cr, get_width() - triw2 - 5 * scale, rint((get_height() + trih) * .5));
 		cairo_rel_line_to(cr, .5 - triw2, .5 - trih);
 		cairo_rel_line_to(cr, 2. * triw2 - 1, 0);
 		cairo_close_path(cr);
@@ -583,8 +583,8 @@ ArdourButton::render (Cairo::RefPtr<Cairo::Context> const& ctx, cairo_rectangle_
 	}
 
 	if (_elements & MetaMenu) {
-		cairo_move_to(cr, get_width() - floor (_diameter) - 6.5, 1);
-		cairo_line_to(cr, get_width() - floor (_diameter) - 6.5, get_height () -1);
+		cairo_move_to(cr, get_width() - floor (_diameter) - 6.5 * scale, 1);
+		cairo_line_to(cr, get_width() - floor (_diameter) - 6.5 * scale, get_height () -1);
 		Gtkmm2ext::set_source_rgba (cr, outline_color);
 		cairo_set_line_width(cr, 1);
 		cairo_stroke(cr);
diff --git a/libs/widgets/metabutton.cc b/libs/widgets/metabutton.cc
index bfd2dc1507..02b63e6707 100644
--- a/libs/widgets/metabutton.cc
+++ b/libs/widgets/metabutton.cc
@@ -251,13 +251,14 @@ MetaButton::render (Cairo::RefPtr<Cairo::Context> const& ctx, cairo_rectangle_t*
 		ArdourButton::render (ctx, rect);
 	}
 	if (_hovering && UIConfigurationBase::instance ().get_widget_prelight ()) {
+		const float scale = UIConfigurationBase::instance().get_ui_scale();
 		const bool  boxy          = (_tweaks & ForceBoxy) | boxy_buttons ();
-		const float corner_radius = boxy ? 0 : std::max (2.f, _corner_radius * UIConfigurationBase::instance ().get_ui_scale ());
+		const float corner_radius = boxy ? 0 : std::max (2.f, _corner_radius * scale);
 		cairo_t*    cr            = ctx->cobj ();
 		if (_hover_dropdown) {
-			Gtkmm2ext::rounded_right_half_rectangle (cr, get_width () - _diameter - 6, 1, _diameter + 5, get_height () - 2, corner_radius);
+			Gtkmm2ext::rounded_right_half_rectangle (cr, get_width () - _diameter - 6 * scale, 1, _diameter + 5 * scale, get_height () - 2, corner_radius);
 		} else {
-			Gtkmm2ext::rounded_left_half_rectangle (cr, 1, 1, get_width () - _diameter - 8, get_height () - 2, corner_radius);
+			Gtkmm2ext::rounded_left_half_rectangle (cr, 1, 1, get_width () - _diameter - 8 * scale, get_height () - 2 * scale, corner_radius);
 		}
 		cairo_set_source_rgba (cr, 0.905, 0.917, 0.925, 0.2);
 		cairo_fill (cr);