diff --git a/libs/ardour/ardour/midi_source.h b/libs/ardour/ardour/midi_source.h
index 29f88773a9..4815263739 100644
--- a/libs/ardour/ardour/midi_source.h
+++ b/libs/ardour/ardour/midi_source.h
@@ -162,8 +162,6 @@ class LIBARDOUR_API MidiSource : virtual public Source, public boost::enable_sha
 	std::string captured_for() const               { return _captured_for; }
 	void        set_captured_for (std::string str) { _captured_for = str; }
 
-	static PBD::Signal1<void,MidiSource*> MidiSourceCreated;
-
 	XMLNode& get_state ();
 	int set_state (const XMLNode&, int version);
 
diff --git a/libs/ardour/midi_source.cc b/libs/ardour/midi_source.cc
index a8491e06a1..d675662a6a 100644
--- a/libs/ardour/midi_source.cc
+++ b/libs/ardour/midi_source.cc
@@ -56,8 +56,6 @@ using namespace std;
 using namespace ARDOUR;
 using namespace PBD;
 
-PBD::Signal1<void,MidiSource*> MidiSource::MidiSourceCreated;
-
 MidiSource::MidiSource (Session& s, string name, Source::Flag flags)
 	: Source(s, DataType::MIDI, name, flags)
 	, _writing(false)