diff --git a/devchat/assistant.py b/devchat/assistant.py
index 10a94f00..ec20e55a 100755
--- a/devchat/assistant.py
+++ b/devchat/assistant.py
@@ -104,7 +104,10 @@ def iterate_response(self) -> Iterator[str]:
         if self._chat.config.stream:
             created_time = int(time.time())
             config_params = self._chat.config.dict(exclude_unset=True)
-            for chunk in self._chat.stream_response(self._prompt):
+            stream_responses = self._chat.stream_response(self._prompt)
+            if not stream_responses:
+                raise RuntimeError("No response returned from the chat API")
+            for chunk in stream_responses:
                 try:
                     if hasattr(chunk, "dict"):
                         chunk = chunk.dict()
diff --git a/devchat/openai/http_openai.py b/devchat/openai/http_openai.py
index e5ebdacd..c405b315 100755
--- a/devchat/openai/http_openai.py
+++ b/devchat/openai/http_openai.py
@@ -36,7 +36,8 @@ def stream_response(connection: http.client.HTTPSConnection, data, headers):
     response = connection.getresponse()
 
     if response.status != 200:
-        print(f"Error: {response.status} - {response.reason}")
+        print(f"Error: {response.status} - {response.reason} {response.read()}",
+            end="\n\n", file=sys.stderr)
         return None
     return LineReader(response=response)