diff --git a/libs/ardour/ardour/session.h b/libs/ardour/ardour/session.h
index bba0b5a41b..6f12f31f32 100644
--- a/libs/ardour/ardour/session.h
+++ b/libs/ardour/ardour/session.h
@@ -260,7 +260,6 @@ class Session : public PBD::StatefulDestructible
 
 	const SessionDirectory& session_directory () const { return *(_session_dir.get()); }
 
-	std::string peak_dir () const;
 	std::string automation_dir () const;
 
 	static string suffixed_search_path (std::string suffix, bool data);
diff --git a/libs/ardour/session_state.cc b/libs/ardour/session_state.cc
index f6bc6b89d5..d06c90780a 100644
--- a/libs/ardour/session_state.cc
+++ b/libs/ardour/session_state.cc
@@ -1850,15 +1850,6 @@ Session::XMLNamedSelectionFactory (const XMLNode& node)
 	}
 }
 
-string
-Session::peak_dir () const
-{
-	string res = _path;
-	res += peak_dir_name;
-	res += '/';
-	return res;
-}
-	
 string
 Session::automation_dir () const
 {