1 files changed, 12 insertions, 1 deletions
diff --git a/gtk2_ardour/panner2d.h b/gtk2_ardour/panner2d.h
index d3ceef1401..ff81ea3987 100644
--- a/gtk2_ardour/panner2d.h
+++ b/gtk2_ardour/panner2d.h
@@ -24,7 +24,9 @@
 #include <sys/types.h>
 #include <map>
 #include <string>
-#include <gtkmm.h>
+
+#include <glibmm/refptr.h>
+#include <gtkmm/drawingarea.h>
 
 using std::map;
 using std::string;
@@ -33,6 +35,15 @@ namespace ARDOUR {
 	class Panner;
 }
 
+namespace Gtk {
+	class Menu;
+	class CheckMenuItem;
+}
+
+namespace Pango {
+	class Layout;
+}
+
 class Panner2d : public Gtk::DrawingArea
 {
   public: