diff --git a/gtk2_ardour/editor_drag.cc b/gtk2_ardour/editor_drag.cc
index 9bcdc9d2c5..0cfa0c8163 100644
--- a/gtk2_ardour/editor_drag.cc
+++ b/gtk2_ardour/editor_drag.cc
@@ -272,6 +272,7 @@ Drag::Drag (Editor* e, ArdourCanvas::Item* i, bool trackview_only)
 	, _raw_grab_sample (0)
 	, _grab_sample (0)
 	, _last_pointer_sample (0)
+	, _earliest_time_limit (0)
 	, _snap_delta (0)
 	, _snap_delta_music (0.0)
 	, _constraint_pressed (false)
diff --git a/gtk2_ardour/editor_drag.h b/gtk2_ardour/editor_drag.h
index 36aa1336af..17e9ef7296 100644
--- a/gtk2_ardour/editor_drag.h
+++ b/gtk2_ardour/editor_drag.h
@@ -303,6 +303,7 @@ private:
 	ARDOUR::samplepos_t _raw_grab_sample; ///< unsnapped sample that the mouse was at when start_grab was called, or 0
 	ARDOUR::samplepos_t _grab_sample; ///< adjusted_sample that the mouse was at when start_grab was called, or 0
 	ARDOUR::samplepos_t _last_pointer_sample; ///< adjusted_sample the last time a motion occurred
+	ARDOUR::samplepos_t _earliest_time_limit; ///< time we cannot drag before (defaults to 0, indicating no such limit)
 
 	/* difference between some key position's snapped and unsnapped
 	 *  samplepos. used for relative snap.