diff --git a/codearchiver/core.py b/codearchiver/core.py
index 7b8b657..43ce8a2 100644
--- a/codearchiver/core.py
+++ b/codearchiver/core.py
@@ -2,6 +2,7 @@ import abc
 import collections
 #import codearchiver.modules  # In get_module_class
 import codearchiver.version
+import dataclasses
 import logging
 import queue
 import requests
@@ -28,16 +29,17 @@ class InputURL:
 		return self._response.text
 
 
-class Result(typing.NamedTuple):
+@dataclasses.dataclass
+class Result:
 	'''Container for the result of a module'''
 
 	id: str
 	'''A unique ID for this result'''
 
-	files: typing.List[str] = []
+	files: typing.List[str] = dataclasses.field(default_factory = list)
 	'''List of filenames produced by the run'''
 
-	submodules: typing.List['Module'] = []
+	submodules: typing.List['Module'] = dataclasses.field(default_factory = list)
 	'''List of related submodules that need to be run as well'''