diff --git a/gtk2_ardour/time_axis_view_item.cc b/gtk2_ardour/time_axis_view_item.cc
index fb6b5cf6a5..b2d38b98fa 100644
--- a/gtk2_ardour/time_axis_view_item.cc
+++ b/gtk2_ardour/time_axis_view_item.cc
@@ -62,7 +62,7 @@ const double TimeAxisViewItem::GRAB_HANDLE_LENGTH = 6 ;
  * @param start the start point of this item
  * @param duration the duration of this item
  */
-TimeAxisViewItem::TimeAxisViewItem(std::string it_name, ArdourCanvas::Group& parent, TimeAxisView& tv, double spu, Gdk::Color& base_color, 
+TimeAxisViewItem::TimeAxisViewItem(ARDOUR::stringcr_t it_name, ArdourCanvas::Group& parent, TimeAxisView& tv, double spu, Gdk::Color& base_color, 
 				   jack_nframes_t start, jack_nframes_t duration,
 				   Visibility visibility)
 	: trackview (tv)
diff --git a/gtk2_ardour/time_axis_view_item.h b/gtk2_ardour/time_axis_view_item.h
index cf74736479..ca3a980a55 100644
--- a/gtk2_ardour/time_axis_view_item.h
+++ b/gtk2_ardour/time_axis_view_item.h
@@ -340,7 +340,7 @@ class TimeAxisViewItem : public sigc::trackable, public Selectable
      * @param start the start point of this item
      * @param duration the duration of this item
      */
-    TimeAxisViewItem(std::string it_name, ArdourCanvas::Group& parent, TimeAxisView& tv, double spu, Gdk::Color& base_color, 
+    TimeAxisViewItem(ARDOUR::stringcr_t it_name, ArdourCanvas::Group& parent, TimeAxisView& tv, double spu, Gdk::Color& base_color, 
 		     jack_nframes_t start, jack_nframes_t duration, Visibility v = Visibility (0));
     
     /**