diff --git a/gtk2_ardour/mixer_ui.cc b/gtk2_ardour/mixer_ui.cc
index 0ce6f6cfd8..8c90f09551 100644
--- a/gtk2_ardour/mixer_ui.cc
+++ b/gtk2_ardour/mixer_ui.cc
@@ -162,6 +162,7 @@ Mixer_UI::Mixer_UI ()
 	/* add as last item of strip packer */
 	strip_packer.pack_end (scroller_base, true, true);
 	scroller_base.set_size_request (PX_SCALE (20), -1);
+	scroller_base.signal_expose_event().connect (sigc::bind (sigc::ptr_fun(&ArdourWidgets::ArdourIcon::expose), &scroller_base, ArdourWidgets::ArdourIcon::ShadedPlusSign,));
 
 #ifdef MIXBUS
 	/* create a drop-shadow at the end of the mixer strips */
@@ -1675,7 +1676,7 @@ Mixer_UI::redisplay_track_list ()
 
 	vca_hpacker.pack_end (vca_scroller_base, true, true);
 	vca_scroller_base.set_size_request (PX_SCALE (20), -1);
-
+	vca_scroller_base.signal_expose_event().connect (sigc::bind (sigc::ptr_fun(&ArdourWidgets::ArdourIcon::expose), &vca_scroller_base, ArdourWidgets::ArdourIcon::ShadedPlusSign,));
 	vca_scroller_base.show();
 
 	for (i = rows.begin(); i != rows.end(); ++i) {
diff --git a/gtk2_ardour/recorder_ui.cc b/gtk2_ardour/recorder_ui.cc
index 5aec9baec5..35856b957f 100644
--- a/gtk2_ardour/recorder_ui.cc
+++ b/gtk2_ardour/recorder_ui.cc
@@ -41,6 +41,7 @@
 #include "gtkmm2ext/utils.h"
 #include "gtkmm2ext/window_title.h"
 
+#include "widgets/ardour_icon.h"
 #include "widgets/prompter.h"
 #include "widgets/tooltips.h"
 
@@ -146,6 +147,7 @@ RecorderUI::RecorderUI ()
 	_scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 	_scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &RecorderUI::scroller_button_release));
 	_scroller_base.set_size_request (-1, PX_SCALE (20));
+	_scroller_base.signal_expose_event().connect (sigc::bind (sigc::ptr_fun(&ArdourWidgets::ArdourIcon::expose), &_scroller_base, ArdourWidgets::ArdourIcon::ShadedPlusSign,));
 
 	/* LAYOUT */
 
@@ -1154,7 +1156,6 @@ RecorderUI::peak_reset ()
 
 /* ****************************************************************************/
 
-
 bool RecorderUI::InputPort::_size_groups_initialized = false;
 
 Glib::RefPtr<Gtk::SizeGroup> RecorderUI::InputPort::_name_size_group;