diff --git a/app/assets/javascripts/blacklists.js b/app/assets/javascripts/blacklists.js
index d35007e6e..847069607 100644
--- a/app/assets/javascripts/blacklists.js
+++ b/app/assets/javascripts/blacklists.js
@@ -23,7 +23,7 @@
   }
 
   Danbooru.Blacklist.parse_entries = function() {
-    var entries = (Danbooru.meta("blacklisted-tags") || "nozomiisthebestlovelive").replace(/(rating:[qes])\w+/, "$1").split(/,/);
+    var entries = (Danbooru.meta("blacklisted-tags") || "nozomiisthebestlovelive").replace(/(rating:[qes])\w+/ig, "$1").toLowerCase().split(/,/);
 
     $.each(entries, function(i, tags) {
       var blacklist = Danbooru.Blacklist.parse_entry(tags);