diff --git a/src/js/cosmetic-filtering.js b/src/js/cosmetic-filtering.js
index 3d0781f51..e48849b3f 100644
--- a/src/js/cosmetic-filtering.js
+++ b/src/js/cosmetic-filtering.js
@@ -1166,8 +1166,8 @@ FilterContainer.prototype.retrieveDomainSelectors = function(request) {
 
     //quickProfiler.start('FilterContainer.retrieve()');
 
-    var hostname = µb.URI.hostnameFromURI(request.locationURL);
-    var domain = µb.URI.domainFromHostname(hostname) || hostname;
+    var hostname = this.µburi.hostnameFromURI(request.locationURL);
+    var domain = this.µburi.domainFromHostname(hostname) || hostname;
     var pos = domain.indexOf('.');
 
     // https://github.com/chrisaljoudi/uBlock/issues/587