diff --git a/chrome/content/zotero/xpcom/file.js b/chrome/content/zotero/xpcom/file.js
index 7b7621973..fdf8157cd 100644
--- a/chrome/content/zotero/xpcom/file.js
+++ b/chrome/content/zotero/xpcom/file.js
@@ -209,7 +209,7 @@ Zotero.File = new function(){
 		}
 		
 		var options = {
-			charset: charset ? Zotero.CharacterSets.getName(charset) : "UTF-8",
+			charset: charset ? charset : "UTF-8",
 			// This doesn't seem to work -- reading an image file still throws NS_ERROR_ILLEGAL_INPUT
 			replacement: "\uFFFD"
 		};