diff --git a/km3io/__init__.py b/km3io/__init__.py
index 5ae07630512fc534a511d43e9a0a40dad03d3890..6c7748f659cd2ecaed6821316dec1319200af4bc 100644
--- a/km3io/__init__.py
+++ b/km3io/__init__.py
@@ -1,5 +1,5 @@
 from .__version__ import version
 __version__ = version
 
-from .aanet import OfflineReader
+from .offline import OfflineReader
 from .daq import DAQReader
diff --git a/km3io/aanet.py b/km3io/offline.py
similarity index 100%
rename from km3io/aanet.py
rename to km3io/offline.py
diff --git a/tests/test_aanet.py b/tests/test_offline.py
similarity index 99%
rename from tests/test_aanet.py
rename to tests/test_offline.py
index 295ee13f8e0cc2b7fc9ba7d2c01cd3a55688c3d7..2dbae94258c6f4aa3d9dff958066d26b11796ec8 100644
--- a/tests/test_aanet.py
+++ b/tests/test_offline.py
@@ -1,7 +1,7 @@
 import unittest
 from pathlib import Path
 
-from km3io.aanet import Reader, OfflineEvents, OfflineHits, OfflineTracks
+from km3io.offline import Reader, OfflineEvents, OfflineHits, OfflineTracks
 from km3io import OfflineReader
 
 SAMPLES_DIR = Path(__file__).parent / 'samples'