diff --git a/lib/xss.js b/lib/xss.js
index b8a379e9..4ebe3876 100644
--- a/lib/xss.js
+++ b/lib/xss.js
@@ -32,6 +32,10 @@ const ALLOWED_ATTRIBUTES = [
     "width"
 ];
 
+const ALLOWED_SCHEMES = [
+    "mumble"
+];
+
 var ATTRIBUTE_MAP = {
     a: ["href", "name", "target"],
     font: ["size"],
@@ -55,6 +59,7 @@ sanitizeHTML.defaults.allowedTags.concat(ALLOWED_TAGS).forEach(function (tag) {
 });
 
 const SETTINGS = {
+    allowedSchemes: sanitizeHTML.defaults.allowedSchemes.concat(ALLOWED_SCHEMES),
     allowedTags: sanitizeHTML.defaults.allowedTags.concat(ALLOWED_TAGS),
     allowedAttributes: ATTRIBUTE_MAP
 };