diff --git a/gtk2_ardour/mixer_strip.cc b/gtk2_ardour/mixer_strip.cc
index 4861efd..9212b6c 100644
--- a/gtk2_ardour/mixer_strip.cc
+++ b/gtk2_ardour/mixer_strip.cc
@@ -300,13 +300,9 @@ MixerStrip::~MixerStrip ()
 {
 	GoingAway(); /* EMIT_SIGNAL */
 
-	if (input_selector) {
-		delete input_selector;
-	}
-
-	if (output_selector) {
-		delete output_selector;
-	}
+	delete input_selector;
+	delete output_selector;
+	delete comment_window;
 }
 
 void