@@ -414,11 +414,11 @@
 	if (!self->_acceptProlog)
 		return false;
 
 	self->_acceptProlog = false;
 
-	pi = [pi substringWithRange: of_range(3, pi.length - 3)];
+	pi = [pi substringFromIndex: 3];
 	pi = pi.stringByDeletingEnclosingWhitespaces;
 
 	cString = pi.UTF8String;
 	length = pi.UTF8StringLength;