diff --git a/libs/ardour/delivery.cc b/libs/ardour/delivery.cc
index 82e025845e..4a392a8145 100644
--- a/libs/ardour/delivery.cc
+++ b/libs/ardour/delivery.cc
@@ -397,8 +397,7 @@ Delivery::reset_panner ()
 	if (panners_legal) {
 		if (!_no_panner_reset) {
 
-			if (_panshell) {
-				assert (_role == Main || _role == Aux || _role == Send || _role == Listen);
+			if (_panshell && _role != Insert) {
 				_panshell->configure_io (ChanCount (DataType::AUDIO, pans_required()), ChanCount (DataType::AUDIO, pan_outs()));
 			}
 		}
@@ -412,8 +411,7 @@ Delivery::reset_panner ()
 void
 Delivery::panners_became_legal ()
 {
-	if (_panshell) {
-		assert (_role == Main || _role == Aux || _role == Send || _role == Listen);
+	if (_panshell && _role != Insert) {
 		_panshell->configure_io (ChanCount (DataType::AUDIO, pans_required()), ChanCount (DataType::AUDIO, pan_outs()));
 	}