diff --git a/libs/ardour/plugin_insert.cc b/libs/ardour/plugin_insert.cc
index 22e40e4b63..4c4d7e875f 100644
--- a/libs/ardour/plugin_insert.cc
+++ b/libs/ardour/plugin_insert.cc
@@ -222,7 +222,7 @@ PluginInsert::add_sidechain (uint32_t n_audio, uint32_t n_midi)
 	} else if (owner()) {
 		n << "SC " << owner()->name() << "/" << name() << " " << Session::next_name_id ();
 	} else {
-		n << "tobeRenamed";
+		n << "toBeRenamed" << id().to_s();
 	}
 	SideChain *sc = new SideChain (_session, n.str ());
 	_sidechain = boost::shared_ptr<SideChain> (sc);
diff --git a/libs/ardour/route.cc b/libs/ardour/route.cc
index 07cc39669a..fe27ac6d48 100644
--- a/libs/ardour/route.cc
+++ b/libs/ardour/route.cc
@@ -894,11 +894,6 @@ Route::add_processor (boost::shared_ptr<Processor> processor, boost::shared_ptr<
 		processor->activate ();
 	}
 
-	boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert> (processor);
-	if (pi) {
-		pi->update_sidechain_name ();
-	}
-
 	return 0;
 }
 
@@ -1143,6 +1138,7 @@ Route::add_processors (const ProcessorList& others, boost::shared_ptr<Processor>
 			}
 
 			if (pi && pi->has_sidechain ()) {
+				pi->update_sidechain_name ();
 				pi->sidechain_input ()->changed.connect_same_thread (*this, boost::bind (&Route::sidechain_change_handler, this, _1, _2));
 			}