diff --git a/modules/xmpp/TraceablePeerConnection.js b/modules/xmpp/TraceablePeerConnection.js
index eb8771387..7df5bd8a5 100644
--- a/modules/xmpp/TraceablePeerConnection.js
+++ b/modules/xmpp/TraceablePeerConnection.js
@@ -218,6 +218,8 @@ if (TraceablePeerConnection.prototype.__defineGetter__ !== undefined) {
         function() {
             var desc = this.peerconnection.localDescription;
 
+            // FIXME this should probably be after the Unified Plan -> Plan B
+            // transformation.
             desc = SSRCReplacement.mungeLocalVideoSSRC(desc);
 
             this.trace('getLocalDescription::preTransform', dumpSDP(desc));