diff --git a/km3io/definitions.py b/km3io/definitions.py
index c511accf6d631d61939366427ab03681b3a1f37f..4e2134a53eeadac0cb2d91588aad91287fa9478f 100644
--- a/km3io/definitions.py
+++ b/km3io/definitions.py
@@ -19,6 +19,8 @@ class AttrDict(dict):
         self.__dict__ = self
 
 
+daqdatatypes = AttrDict(daqdatatypes)
+root = AttrDict(root)
 trigger = AttrDict(trigger)
 fitparameters = AttrDict(fitparameters)
 reconstruction = AttrDict(reconstruction)