diff --git a/library/decort_group.py b/library/decort_group.py
index f8a1f9a..129c7cd 100644
--- a/library/decort_group.py
+++ b/library/decort_group.py
@@ -209,7 +209,20 @@ class decort_group(DecortController):
             role=dict(type='str', required=False, default=''),
             cpu=dict(type='int', required=False),
             ram=dict(type='int', required=False),
-            networks=dict(type='list', default=[], required=False),
+            networks=dict(
+                type='list', default=[], elements='dict',
+                options=dict(
+                    type=dict(
+                        type='str',
+                        required=True,
+                        choices=['VINS', 'EXTNET']
+                    ),
+                    id=dict(
+                        type='int',
+                        required=True
+                    )
+                )
+            ),
             description=dict(type='str', default="Created by decort ansible module"),
             verify_ssl=dict(type='bool', required=False, default=True),
             workflow_callback=dict(type='str', required=False),