diff --git a/nylas/models/response.py b/nylas/models/response.py
index d00798c..f8a9165 100644
--- a/nylas/models/response.py
+++ b/nylas/models/response.py
@@ -94,7 +94,7 @@ def from_dict(cls, resp: dict, generic_type):
 
         converted_data = []
         for item in resp["data"]:
-            converted_data.append(generic_type.from_dict(item))
+            converted_data.append(generic_type.from_dict(item, infer_missing=True))
 
         return cls(
             data=converted_data,
diff --git a/tests/resources/test_threads.py b/tests/resources/test_threads.py
index 47c9cbe..749c4b9 100644
--- a/tests/resources/test_threads.py
+++ b/tests/resources/test_threads.py
@@ -1,7 +1,7 @@
 from nylas.models.attachments import Attachment
 from nylas.models.events import EmailName
+from nylas.models.response import ListResponse
 from nylas.resources.threads import Threads
-
 from nylas.models.threads import Thread
 
 
@@ -147,6 +147,48 @@ def test_list_threads_with_query_params(self, http_client_list_response):
             overrides=None,
         )
 
+    def test_list_threads_with_select_param(self, http_client_list_response):
+        threads = Threads(http_client_list_response)
+
+        # Set up mock response data
+        http_client_list_response._execute.return_value = {
+            "request_id": "abc-123",
+            "data": [{
+                "id": "thread-123",
+                "has_attachments": False,
+                "earliest_message_date": 1634149514,
+                "participants": [
+                    {"email": "test@example.com", "name": "Test User"}
+                ],
+                "snippet": "Test snippet",
+                "unread": False,
+                "subject": "Test subject",
+                "message_ids": ["msg-123"],
+                "folders": ["folder-123"]
+            }]
+        }
+
+        # Call the API method
+        result = threads.list(
+            identifier="abc-123",
+            query_params={
+                "select": "id,has_attachments,earliest_message_date,participants,snippet,unread,subject,message_ids,folders"
+            }
+        )
+
+        # Verify API call
+        http_client_list_response._execute.assert_called_with(
+            "GET",
+            "/v3/grants/abc-123/threads",
+            None,
+            {"select": "id,has_attachments,earliest_message_date,participants,snippet,unread,subject,message_ids,folders"},
+            None,
+            overrides=None,
+        )
+
+        # The actual response validation is handled by the mock in conftest.py
+        assert result is not None
+
     def test_find_thread(self, http_client_response):
         threads = Threads(http_client_response)