1 files changed, 4 insertions, 1 deletions
diff --git a/gtk2_ardour/io_selector.h b/gtk2_ardour/io_selector.h
index 4e40b356cd..3025f1d267 100644
--- a/gtk2_ardour/io_selector.h
+++ b/gtk2_ardour/io_selector.h
@@ -33,10 +33,13 @@ namespace ARDOUR {
 	class PortInsert;
 }
 
-struct PortGroup
+class PortGroup
 {
+  public:
 	PortGroup (std::string const & n, std::string const & p) : name (n), prefix (p) {}
 
+	void add (std::string const & p);
+
 	std::string name;
 	std::string prefix;
 	std::vector<std::string> ports;