diff --git a/gtk2_ardour/region_view.cc b/gtk2_ardour/region_view.cc
index f863c0a62e..d431996f27 100644
--- a/gtk2_ardour/region_view.cc
+++ b/gtk2_ardour/region_view.cc
@@ -1187,12 +1187,6 @@ RegionView::region_relative_distance (timecnt_t const & duration, Temporal::Time
 	return Temporal::TempoMap::use()->convert_duration (duration, _region->position(), domain);
 }
 
-timecnt_t
-RegionView::source_relative_distance (timecnt_t const & duration, Temporal::TimeDomain domain)
-{
-	return Temporal::TempoMap::use()->convert_duration (duration, _region->source_position(), domain);
-}
-
 void
 RegionView::update_visibility ()
 {
diff --git a/gtk2_ardour/region_view.h b/gtk2_ardour/region_view.h
index f81a85308b..cd25617c74 100644
--- a/gtk2_ardour/region_view.h
+++ b/gtk2_ardour/region_view.h
@@ -196,7 +196,6 @@ protected:
 	void maybe_raise_cue_markers ();
 
 	Temporal::timecnt_t region_relative_distance (Temporal::timecnt_t const &, Temporal::TimeDomain desired_time_domain);
-	Temporal::timecnt_t source_relative_distance (Temporal::timecnt_t const &, Temporal::TimeDomain desired_time_domain);
 
 	boost::shared_ptr<ARDOUR::Region> _region;