Index: src/OFXMLParser.m
==================================================================
--- src/OFXMLParser.m
+++ src/OFXMLParser.m
@@ -64,11 +64,11 @@
     id <OFStringXMLUnescapingDelegate> delegate)
 {
 	char *items;
 	size_t i, length;
 	BOOL hasEntities = NO;
-	OFMutableString *ret;
+	OFString *ret;
 
 	items = [cache items];
 	length = [cache count] - cut;
 
 	for (i = 0; i < length; i++) {
@@ -83,18 +83,16 @@
 				items[i] = '\n';
 		} else if (items[i] == '&')
 			hasEntities = YES;
 	}
 
-	ret = [OFMutableString stringWithUTF8String: items
-					     length: length];
+	ret = [OFString stringWithUTF8String: items
+				      length: length];
 
 	if (unescape && hasEntities)
 		return [ret stringByXMLUnescapingWithDelegate: delegate];
 
-	[ret makeImmutable];
-
 	return ret;
 }
 
 static OFString*
 namespace_for_prefix(OFString *prefix, OFArray *namespaces)