diff --git a/core/nwb.file.yaml b/core/nwb.file.yaml
index 682a5844..331cbfa2 100644
--- a/core/nwb.file.yaml
+++ b/core/nwb.file.yaml
@@ -270,6 +270,7 @@ groups:
         doc: Physical group of electrodes.
         quantity: '*'
       - name: electrodes
+        neurodata_type_def: ElectrodesTable
         neurodata_type_inc: DynamicTable
         doc: A table of all electrodes (i.e. channels) used for recording.
         quantity: '?'
diff --git a/core/nwb.misc.yaml b/core/nwb.misc.yaml
index e743ac6b..67a6485e 100644
--- a/core/nwb.misc.yaml
+++ b/core/nwb.misc.yaml
@@ -131,6 +131,7 @@ groups:
     quantity: '?'
   groups:
   - name: bands
+    neurodata_type_def: FrequencyBandsTable
     neurodata_type_inc: DynamicTable
     doc: Table for describing the bands that this series was generated from. There
       should be one row in this table for each band.