diff --git a/libs/ardour/ardour/audiofilesource.h b/libs/ardour/ardour/audiofilesource.h
index bad6203bc2..d91280284d 100644
--- a/libs/ardour/ardour/audiofilesource.h
+++ b/libs/ardour/ardour/audiofilesource.h
@@ -41,8 +41,6 @@ public:
 
 	std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const;
 
-	static void set_peak_dir (const std::string& dir) { peak_dir = dir; }
-
 	static bool get_soundfile_info (const std::string& path, SoundFileInfo& _info, std::string& error);
 
 	bool safe_file_extension (const std::string& path) const {
@@ -107,8 +105,6 @@ protected:
 
 	static Sample* get_interleave_buffer (framecnt_t size);
 
-	static std::string peak_dir;
-
 	static char bwf_country_code[3];
 	static char bwf_organization_code[4];
 	static char bwf_serial_number[13];
diff --git a/libs/ardour/audiofilesource.cc b/libs/ardour/audiofilesource.cc
index ed189152e5..a98a43e695 100644
--- a/libs/ardour/audiofilesource.cc
+++ b/libs/ardour/audiofilesource.cc
@@ -68,8 +68,6 @@ using namespace ARDOUR;
 using namespace PBD;
 using namespace Glib;
 
-string AudioFileSource::peak_dir = "";
-
 PBD::Signal0<void> AudioFileSource::HeaderPositionOffsetChanged;
 framecnt_t         AudioFileSource::header_position_offset = 0;
 
diff --git a/libs/ardour/session_state.cc b/libs/ardour/session_state.cc
index bb4a8265ef..562db87ef3 100644
--- a/libs/ardour/session_state.cc
+++ b/libs/ardour/session_state.cc
@@ -202,8 +202,6 @@ Session::pre_engine_init (string fullpath)
 
 	Delivery::disable_panners ();
 	IO::disable_connecting ();
-
-	AudioFileSource::set_peak_dir (_session_dir->peak_path());
 }
 
 int