diff --git a/boot/boot.js b/boot/boot.js
index 4be9251d2..392177c33 100644
--- a/boot/boot.js
+++ b/boot/boot.js
@@ -1281,8 +1281,7 @@ $tw.Wiki.prototype.deserializeTiddlers = function(type,text,srcFields,options) {
 /*
 Register the built in tiddler deserializer modules
 */
-$tw.modules.define("$:/boot/tiddlerdeserializer/js","tiddlerdeserializer",{
-	"application/javascript": function(text,fields) {
+var deserializeHeaderComment = function(text,fields) {
 		var headerCommentRegExp = new RegExp($tw.config.jsModuleHeaderRegExpString,"mg"),
 			match = headerCommentRegExp.exec(text);
 		fields.text = text;
@@ -1290,7 +1289,12 @@ $tw.modules.define("$:/boot/tiddlerdeserializer/js","tiddlerdeserializer",{
 			fields = $tw.utils.parseFields(match[1].split(/\r?\n\r?\n/mg)[0],fields);
 		}
 		return [fields];
-	}
+	};
+$tw.modules.define("$:/boot/tiddlerdeserializer/js","tiddlerdeserializer",{
+	"application/javascript": deserializeHeaderComment
+});
+$tw.modules.define("$:/boot/tiddlerdeserializer/css","tiddlerdeserializer",{
+	"application/css": deserializeHeaderComment
 });
 $tw.modules.define("$:/boot/tiddlerdeserializer/tid","tiddlerdeserializer",{
 	"application/x-tiddler": function(text,fields) {