diff --git a/libs/ardour/midi_patch_manager.cc b/libs/ardour/midi_patch_manager.cc
index 6852de8ba3..c6e70b2a6c 100644
--- a/libs/ardour/midi_patch_manager.cc
+++ b/libs/ardour/midi_patch_manager.cc
@@ -50,7 +50,6 @@ MidiPatchManager::set_session (Session* s)
 {
 	SessionHandlePtr::set_session (s);
 	refresh ();
-	add_session_patches ();
 }
 
 bool