diff --git a/api/common/data_handlers/__init__.py b/api/common/data_handlers/__init__.py
index 9f62844..db2856b 100644
--- a/api/common/data_handlers/__init__.py
+++ b/api/common/data_handlers/__init__.py
@@ -1,6 +1,7 @@
 from . import core
 from . import features
 from . import compounds
+from . import vocabularies
 
 from ...siibra_api_config import ROLE