diff --git a/lib/appenders/categoryFilter.js b/lib/appenders/categoryFilter.js
deleted file mode 100644
index f854f65..0000000
--- a/lib/appenders/categoryFilter.js
+++ /dev/null
@@ -1,20 +0,0 @@
-"use strict";
-var log4js = require('../log4js');
-
-function categoryFilter (excludes, appender) {
-  if (typeof(excludes) === 'string') excludes = [excludes];
-  return function(logEvent) {
-    if (excludes.indexOf(logEvent.categoryName) === -1) {
-      appender(logEvent);
-    }
-  };
-}
-
-function configure(config) {
-  log4js.loadAppender(config.appender.type);
-  var appender = log4js.appenderMakers[config.appender.type](config.appender);
-  return categoryFilter(config.exclude, appender);
-}
-
-exports.appender = categoryFilter;
-exports.configure = configure;