diff --git a/gtk2_ardour/editor.h b/gtk2_ardour/editor.h
index 8d78f15c15..0f893e7b2f 100644
--- a/gtk2_ardour/editor.h
+++ b/gtk2_ardour/editor.h
@@ -105,10 +105,6 @@ namespace ARDOUR {
 	class Track;
 }
 
-namespace LADSPA {
-	class Plugin;
-}
-
 class AnalysisWindow;
 class AudioClock;
 class AudioRegionView;
diff --git a/gtk2_ardour/panner2d.h b/gtk2_ardour/panner2d.h
index 46498ade6b..f7acc04a34 100644
--- a/gtk2_ardour/panner2d.h
+++ b/gtk2_ardour/panner2d.h
@@ -48,10 +48,6 @@ namespace Gtk {
 	class CheckMenuItem;
 }
 
-namespace Pango {
-	class Container;
-}
-
 class Panner2dWindow;
 
 class Panner2d : public Gtk::DrawingArea