diff --git a/src/modules/stream_notifications/messages_proc.py b/src/modules/stream_notifications/messages_proc.py
index 427885f..09631b3 100644
--- a/src/modules/stream_notifications/messages_proc.py
+++ b/src/modules/stream_notifications/messages_proc.py
@@ -106,6 +106,10 @@ async def get_completion(message: str) -> str:
             json={
                 "model": "google/gemini-2.0-flash-thinking-exp:free",
                 "messages": [
+                    {
+                        "role": "system",
+                        "content": "Don't use markdown! Don't use blocked words on Twitch! Make answers short and clear!"
+                    },
                     {
                         "role": "user",
                         "content": message