diff --git a/chrome/content/zotero/preferences/preferences.js b/chrome/content/zotero/preferences/preferences.js
index 330386613e..394a4aee85 100644
--- a/chrome/content/zotero/preferences/preferences.js
+++ b/chrome/content/zotero/preferences/preferences.js
@@ -1165,7 +1165,7 @@ function addStyle() {
 	fp.init(window, Zotero.getString("zotero.preferences.styles.addStyle"), nsIFilePicker.modeOpen);
 	
 	fp.appendFilter("CSL Style", "*.csl");
-	fp.appendFilter("EndNote Style", "*.ens");
+	//fp.appendFilter("EndNote Style", "*.ens");
 	
 	var rv = fp.show();
 	if (rv == nsIFilePicker.returnOK || rv == nsIFilePicker.returnReplace) {
diff --git a/chrome/content/zotero/xpcom/style.js b/chrome/content/zotero/xpcom/style.js
index 1df645fd43..684c109bb8 100644
--- a/chrome/content/zotero/xpcom/style.js
+++ b/chrome/content/zotero/xpcom/style.js
@@ -146,15 +146,15 @@ Zotero.Styles = new function() {
 		
 		var error = false;
 		try {
-			if(type == "ens") {
+			/*if(type == "ens") {
 				// EN style
 				var type = "ens";
 				var enConverter = new Zotero.ENConverter(style);
 				var xml = enConverter.parse();
-			} else {
+			} else {*/
 				// CSL
 				var xml = new XML(Zotero.CSL.Global.cleanXML(style));
-			}
+			//}
 		} catch(e) {
 			error = e;
 		}
@@ -330,13 +330,13 @@ Zotero.Style = function(file) {
 	this.file = file;
 	
 	var extension = file.leafName.substr(-4).toLowerCase();
-	if(extension == ".ens") {
+	/*if(extension == ".ens") {
 		this.type = "ens";
 		
 		this.styleID = Zotero.Styles.ios.newFileURI(this.file).spec;
 		this.title = file.leafName.substr(0, file.leafName.length-4);
 		this.updated = Zotero.Date.dateToSQL(new Date(file.lastModifiedTime));
-	} else if(extension == ".csl") {
+	} else */if(extension == ".csl") {
 		// "with ({});" needed to fix default namespace scope issue
 		// See https://bugzilla.mozilla.org/show_bug.cgi?id=330572
 		default xml namespace = "http://purl.org/net/xbiblio/csl"; with ({});