diff --git a/beetsplug/__init__.py b/beetsplug/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/beetsplug/oldestdate.py b/beetsplug/oldestdate.py
index 6b1cb79..f9fb6eb 100644
--- a/beetsplug/oldestdate.py
+++ b/beetsplug/oldestdate.py
@@ -5,7 +5,7 @@
 from beets.importer import action
 from beets.plugins import BeetsPlugin
 
-from date_wrapper import DateWrapper
+from .date_wrapper import DateWrapper
 
 musicbrainzngs.set_useragent(
     "Beets oldestdate plugin",
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29