diff --git a/nh_ews/ews.py b/nh_ews/ews.py
index fb7d7488..f1bf3819 100644
--- a/nh_ews/ews.py
+++ b/nh_ews/ews.py
@@ -428,6 +428,7 @@ def _data2ews_ids(self, cr, uid, ids, context=None):
             'selection_type': 'text',
             'label': 'AVPU',
             'initially_hidden': False,
+            'required': True,
         },
         {
             'name': 'oxygen_administration_flag',
@@ -436,6 +437,7 @@ def _data2ews_ids(self, cr, uid, ids, context=None):
             'selection': [[False, 'No'], [True, 'Yes']],
             'selection_type': 'boolean',
             'initially_hidden': False,
+            'required': True,
             'on_change': [
                 {
                     'fields': ['device_id'],