diff --git a/gtk2_ardour/dark.colors b/gtk2_ardour/dark.colors
index fd052f5693..ec17aef930 100644
--- a/gtk2_ardour/dark.colors
+++ b/gtk2_ardour/dark.colors
@@ -465,7 +465,7 @@
     <ColorAlias name="trim handle" alias="color 18"/>
     <ColorAlias name="trim handle locked" alias="color 86"/>
     <ColorAlias name="trim knob" alias="color 60"/>
-    <ColorAlias name="trim knob: arc end" alias="color 70"/>
+    <ColorAlias name="trim knob: arc end" alias="color 30"/>
     <ColorAlias name="trim knob: arc start" alias="color 16"/>
     <ColorAlias name="verbose canvas cursor" alias="color 32"/>
     <ColorAlias name="vestigial frame" alias="color 4"/>
diff --git a/gtk2_ardour/mixer_strip.cc b/gtk2_ardour/mixer_strip.cc
index 4c5055dc1c..b3c69dd11c 100644
--- a/gtk2_ardour/mixer_strip.cc
+++ b/gtk2_ardour/mixer_strip.cc
@@ -97,6 +97,7 @@ MixerStrip::MixerStrip (Mixer_UI& mx, Session* sess, bool in_mixer)
 	, meter_point_button (_("pre"))
 	, midi_input_enable_button (0)
 	, _comment_button (_("Comments"))
+	, trim_control (ArdourKnob::default_elements, true)
 	, _visibility (X_("mixer-element-visibility"))
 {
 	init ();
@@ -126,6 +127,7 @@ MixerStrip::MixerStrip (Mixer_UI& mx, Session* sess, boost::shared_ptr<Route> rt
 	, meter_point_button (_("pre"))
 	, midi_input_enable_button (0)
 	, _comment_button (_("Comments"))
+	, trim_control (ArdourKnob::default_elements, true)
 	, _visibility (X_("mixer-element-visibility"))
 {
 	init ();