diff --git a/config.sample.yaml b/config.sample.yaml
index ebf85be..3e599ff 100644
--- a/config.sample.yaml
+++ b/config.sample.yaml
@@ -74,6 +74,9 @@ command:
     # Custom OpenAI endpoint. OpenAI only.
     # api_base:      https://example.com/openai/v1
 
+    # Bot's description, shown when running `!matrixgpt`.
+    # help:            A helpful assistant.
+
 openai:
   api_key:           sk-qwerty12345