diff --git a/core/modules/filters/sortcs.js b/core/modules/filters/sortcs.js
deleted file mode 100644
index 74117aa42..000000000
--- a/core/modules/filters/sortcs.js
+++ /dev/null
@@ -1,32 +0,0 @@
-/*\
-title: $:/core/modules/filters/sortcs.js
-type: application/javascript
-module-type: filteroperator
-
-Filter operator for case-sensitive sorting
-
-\*/
-(function(){
-
-/*jslint node: true, browser: true */
-/*global $tw: false */
-"use strict";
-
-/*
-Export our filter function
-*/
-exports.sortcs = function(source,operator,options) {
-	var results;
-	if($tw.utils.isArray(source)) {
-		results = source;
-	} else {
-		results = [];
-		$tw.utils.each(source,function(element,title) {
-			results.push(title);
-		});
-	}
-	options.wiki.sortTiddlers(results,operator.operand,operator.prefix === "!",true);
-	return results;
-};
-
-})();