diff --git a/libs/ardour/ardour/tempo.h b/libs/ardour/ardour/tempo.h
index c444788fdc..8fc8966462 100644
--- a/libs/ardour/ardour/tempo.h
+++ b/libs/ardour/ardour/tempo.h
@@ -508,7 +508,6 @@ class LIBARDOUR_API TempoMap : public PBD::StatefulDestructible
 
 	std::pair<double, framepos_t> predict_tempo_position (TempoSection* section, const Timecode::BBT_Time& bbt);
 	bool can_solve_bbt (TempoSection* section, const Timecode::BBT_Time& bbt);
-	std::pair<double, double> ntpm_minmax () { return _ntpm_minmax; }
 
 	PBD::Signal1<void,const PBD::PropertyChange&> MetricPositionChanged;
 	void fix_legacy_session();