diff --git a/app/assets/javascripts/posts.js b/app/assets/javascripts/posts.js
index 998c2c7cd..2dbdd4d9e 100644
--- a/app/assets/javascripts/posts.js
+++ b/app/assets/javascripts/posts.js
@@ -71,6 +71,12 @@
         }
 
         var term = before_caret_text.match(/\S+/g).pop();
+        var prefixes = /^(?:-|~|general:|gen:|artist:|art:|copyright:|copy:|co:|character:|char:|ch:)(.+)$/
+        var match = term.match(prefixes);
+        if (match) {
+          term = match[1];
+        }
+
         $.ajax({
           url: "/tags.json",
           data: {