diff --git a/gtk2_ardour/audio_region_view.cc b/gtk2_ardour/audio_region_view.cc
index 1e1a9f2c39..79081eb284 100644
--- a/gtk2_ardour/audio_region_view.cc
+++ b/gtk2_ardour/audio_region_view.cc
@@ -1397,6 +1397,8 @@ AudioRegionView::add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev, b
 
 		trackview.editor ().commit_reversible_command ();
 		trackview.session ()->set_dirty ();
+	} else {
+		delete region_memento;
 	}
 }
 
diff --git a/gtk2_ardour/step_editor.cc b/gtk2_ardour/step_editor.cc
index 94b0894bd5..a1bdcca451 100644
--- a/gtk2_ardour/step_editor.cc
+++ b/gtk2_ardour/step_editor.cc
@@ -204,6 +204,7 @@ StepEditor::check_step_edit ()
 			step_add_note (buf[0] & 0xf, buf[1], buf[2], Temporal::Beats());
 		}
 	}
+	delete [] buf;
 }
 
 int