Index: pub/System/TinyMCEPlugin/tinymce/jscripts/tiny_mce/plugins/wordcount/editor_plugin_src.js
===================================================================
--- pub/System/TinyMCEPlugin/tinymce/jscripts/tiny_mce/plugins/wordcount/editor_plugin_src.js	(revision 7230)
+++ pub/System/TinyMCEPlugin/tinymce/jscripts/tiny_mce/plugins/wordcount/editor_plugin_src.js	(working copy)
@@ -19,7 +19,7 @@
 			var t = this, last = 0;
 
 			t.countre = ed.getParam('wordcount_countregex', /\S\s+/g);
-			t.cleanre = ed.getParam('wordcount_cleanregex', /[0-9.(),;:!?%#$¿'"_+=\\/-]*/g);
+			t.cleanre = ed.getParam('wordcount_cleanregex', /[0-9.(),;:!?%#$¿'"_+=\\\/-]*/g);
 			t.id = ed.id + '-word-count';
 
 			ed.onPostRender.add(function(ed, cm) {