diff --git a/src/servala/core/crd.py b/src/servala/core/crd.py
index 276e9c2..35d9240 100644
--- a/src/servala/core/crd.py
+++ b/src/servala/core/crd.py
@@ -330,7 +330,9 @@ class CrdModelFormMixin:
         # Mark advanced fields with a CSS class and data attribute
         advanced_fields = getattr(self, "ADVANCED_FIELDS", [])
         for name, field in self.fields.items():
-            if name in advanced_fields:
+            if name in advanced_fields or any(
+                name.startswith(f"{af}.") for af in advanced_fields
+            ):
                 field.widget.attrs.update(
                     {
                         "class": (