diff --git a/libs/canvas/canvas/line_set.h b/libs/canvas/canvas/line_set.h
index 23e9a7f21f..b7edac801c 100644
--- a/libs/canvas/canvas/line_set.h
+++ b/libs/canvas/canvas/line_set.h
@@ -47,7 +47,7 @@ public:
 	void set_extent (Distance);
 	Distance extent() const { return _extent; }
 
-	void add (Coord, Distance, Gtkmm2ext::Color);
+	void add_line (Coord, Distance, Gtkmm2ext::Color);
 	void clear ();
 
 	struct Line {
diff --git a/libs/canvas/line_set.cc b/libs/canvas/line_set.cc
index 8fd37b0a70..24f41f4132 100644
--- a/libs/canvas/line_set.cc
+++ b/libs/canvas/line_set.cc
@@ -131,7 +131,7 @@ LineSet::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) const
 }
 
 void
-LineSet::add (Coord y, Distance width, Gtkmm2ext::Color color)
+LineSet::add_line (Coord y, Distance width, Gtkmm2ext::Color color)
 {
 	begin_change ();