--- a/toolkit/content/aboutwebrtc/aboutWebrtc.js
+++ b/toolkit/content/aboutwebrtc/aboutWebrtc.js
@@ -753,17 +753,17 @@ ICEStats.prototype = {
 
   candidateToString(c) {
     if (!c) {
       return "*";
     }
 
     var type = c.candidateType;
 
-    if (c.type == "localcandidate" && c.candidateType == "relayed") {
+    if (c.type == "local-candidate" && c.candidateType == "relayed") {
       type = `${c.candidateType}-${c.mozLocalTransport}`;
     }
 
     return `${c.ipAddress}:${c.portNumber}/${c.transport}(${type})`;
   }
 };
 
 function SimpleTable(heading, data) {