diff --git a/app/assets/javascripts/session.js b/app/assets/javascripts/session.js
index b281865d5..5d79abac8 100644
--- a/app/assets/javascripts/session.js
+++ b/app/assets/javascripts/session.js
@@ -24,6 +24,8 @@
         var lookingForMixersTimer = null;
         var lookingForMixers = {};
 
+        var RENDER_SESSION_DELAY = 750;  // When I need to render a session, I have to wait a bit for the mixers to be there.
+
         var defaultParticipant = {
             tracks: [{
                 instrument_id: "unknown"
@@ -94,7 +96,7 @@
 
         function alertCallback(type, text) {
             if (type === 2) { // BACKEND_MIXER_CHANGE
-                renderSession(); // This empties all and hides voice chat, then completely rebuilds.
+                sessionModel.refreshCurrentSession();
             } else {
                 context.setTimeout(function() {
                     app.notify({
@@ -173,7 +175,7 @@
             // this event appears to fire before the underlying mixers have updated. I have no event to
             // know definitively when the underlying mixers are up to date, so for now, we just delay slightly.
             // This obviously has the possibility of introducing time-based bugs.
-            context.setTimeout(renderSession, 750);
+            context.setTimeout(renderSession, RENDER_SESSION_DELAY);
         }
 
         /**