diff --git a/experimental/python/databricks/bundles/build.py b/experimental/python/databricks/bundles/build.py
index 87bc60d41c..d9ddc626b8 100644
--- a/experimental/python/databricks/bundles/build.py
+++ b/experimental/python/databricks/bundles/build.py
@@ -6,7 +6,7 @@
 import os.path
 import sys
 from copy import deepcopy
-from dataclasses import dataclass, field, replace
+from dataclasses import dataclass, field, fields, replace
 from typing import Callable, Optional, TextIO
 
 from databricks.bundles.core import Bundle, Diagnostics, Location, Resources
@@ -35,7 +35,7 @@ class _Conf:
 
     @classmethod
     def from_dict(cls, d: dict) -> "_Conf":
-        known_keys = {"resources", "mutators", "venv_path"}
+        known_keys = [f.name for f in fields(cls)]
         unknown_keys = d.keys() - known_keys
 
         if unknown_keys:
diff --git a/experimental/python/databricks_tests/test_build.py b/experimental/python/databricks_tests/test_build.py
index 26ecdb1247..980cbbe76e 100644
--- a/experimental/python/databricks_tests/test_build.py
+++ b/experimental/python/databricks_tests/test_build.py
@@ -5,6 +5,7 @@
 from databricks.bundles.build import (
     _append_resources,
     _Args,
+    _Conf,
     _load_object,
     _parse_args,
     _parse_bundle_info,
@@ -266,3 +267,32 @@ def test_parse_args_unknown():
         locations=None,
         unknown_args=["--unknown"],
     )
+
+
+def test_conf_from_dict():
+    actual = _Conf.from_dict(
+        {
+            "resources": [
+                "resources:load_resources",
+                "resources:load_more_resources",
+            ],
+            "mutators": [
+                "resources:add_notifications",
+                "resources:add_more_notifications",
+            ],
+            "venv_path": "venv",
+            "unknown": "unknown",
+        }
+    )
+
+    assert actual == _Conf(
+        resources=[
+            "resources:load_resources",
+            "resources:load_more_resources",
+        ],
+        mutators=[
+            "resources:add_notifications",
+            "resources:add_more_notifications",
+        ],
+        venv_path="venv",
+    )