diff --git a/ldclient/impl/integrations/files/file_data_source.py b/ldclient/impl/integrations/files/file_data_source.py
index b83ef07..ea1e40e 100644
--- a/ldclient/impl/integrations/files/file_data_source.py
+++ b/ldclient/impl/integrations/files/file_data_source.py
@@ -87,7 +87,7 @@ def _load_all(self):
         for path in self._paths:
             try:
                 self._load_file(path, all_data)
-            except Exception as e:
+            except BaseException as e:
                 log.error('Unable to load flag data from "%s": %s' % (path, repr(e)))
                 traceback.print_exc()
                 if self._data_source_update_sink is not None: