diff --git a/libs/ardour/ardour/session.h b/libs/ardour/ardour/session.h
index f86cf63a05..89e71cf1c7 100644
--- a/libs/ardour/ardour/session.h
+++ b/libs/ardour/ardour/session.h
@@ -808,11 +808,6 @@ public:
 	int remove_last_capture ();
 	void get_last_capture_sources (std::list<boost::shared_ptr<Source> >&);
 
-	/** handlers should return 0 for "everything OK", and any other value for
-	 * "cannot setup audioengine".
-	 */
-	static PBD::Signal1<int,uint32_t> AudioEngineSetupRequired;
-
 	/** handlers should return -1 for "stop cleanup",
 	    0 for "yes, delete this playlist",
 	    1 for "no, don't delete this playlist".
diff --git a/libs/ardour/session.cc b/libs/ardour/session.cc
index 3e725881e3..13b1abfdf7 100644
--- a/libs/ardour/session.cc
+++ b/libs/ardour/session.cc
@@ -145,7 +145,6 @@ bool Session::_disable_all_loaded_plugins = false;
 bool Session::_bypass_all_loaded_plugins = false;
 guint Session::_name_id_counter = 0;
 
-PBD::Signal1<int,uint32_t> Session::AudioEngineSetupRequired;
 PBD::Signal1<void,std::string> Session::Dialog;
 PBD::Signal0<int> Session::AskAboutPendingState;
 PBD::Signal2<int, samplecnt_t, samplecnt_t> Session::AskAboutSampleRateMismatch;