diff --git a/gtk2_ardour/mixer_snapshot_dialog.cc b/gtk2_ardour/mixer_snapshot_dialog.cc
index dda166ed82..a9b47d4a6d 100644
--- a/gtk2_ardour/mixer_snapshot_dialog.cc
+++ b/gtk2_ardour/mixer_snapshot_dialog.cc
@@ -199,7 +199,7 @@ void MixerSnapshotDialog::popup_context_menu(int btn, int64_t time, TreeModel::i
 void MixerSnapshotDialog::load_snapshot(TreeModel::iterator& iter)
 {
     MixerSnapshot* snap = (*iter)[_columns.snapshot];
-    
+
     MixerSnapshotSubstitutionDialog* d = new MixerSnapshotSubstitutionDialog(snap);
     d->show_all();
     // d->signal_response().connect(sigc::bind(sigc::mem_fun(*this, &MixerSnapshotDialog::sub_dialog_finished), d));
@@ -594,4 +594,4 @@ void MixerSnapshotDialog::recall_flag_cell_action(const std::string& path, bool
 
         snap->write((*iter)[_columns.full_path]);
     }
-}
\ No newline at end of file
+}