diff --git a/int_tests/test_chat.py b/int_tests/test_chat.py
index ef72e85..c33c1cf 100644
--- a/int_tests/test_chat.py
+++ b/int_tests/test_chat.py
@@ -1,4 +1,3 @@
-import time
 import unittest
 from datetime import timedelta
 from pathlib import Path
@@ -24,7 +23,7 @@ def setUp(self):
         self.search_params = SearchCorporaParameters(
             corpora=[
                 KeyedSearchCorpus(
-                    corpus_key=self.key,
+                    corpus_key="int-test-upload-fern",
                     lexical_interpolation=0,
                 )
             ],
@@ -41,7 +40,7 @@ def setUp(self):
             citations=CitationParameters(
                 style="none",
             ),
-            enable_factual_consistency_score=True,
+            enable_factual_consistency_score=False,
         )
         self.chat_params = ChatParameters(store=True)
 
@@ -53,7 +52,7 @@ def setUp(self):
 
     def test_chat(self):
         response = self.client.chat(
-            query="what is vectara?",
+            query="Robot Utility Models",
             search=self.search_params,
             generation=self.generation_params,
             chat=self.chat_params
diff --git a/src/vectara/client.py b/src/vectara/client.py
index db7be74..66353a0 100644
--- a/src/vectara/client.py
+++ b/src/vectara/client.py
@@ -101,7 +101,7 @@ def chat(
             self,
             *,
             query: str,
-            search: typing.Optional[SearchCorporaParameters] = OMIT,
+            search: SearchCorporaParameters = OMIT,
             request_timeout: typing.Optional[int] = None,
             request_timeout_millis: typing.Optional[int] = None,
             generation: typing.Optional[GenerationParameters] = OMIT,
@@ -136,8 +136,8 @@ def chat(
         ChatFullResponse
         """
 
-        if not chat_id and not search:
-            raise ValueError("`search` parameter is required when `chat_id` is not provided.")
+        # if not chat_id and not search:
+        #     raise ValueError("`search` parameter is required when `chat_id` is not provided.")
 
         if chat_id:
             session = self.session_manager.get_session(chat_id)