diff --git a/claude_sonnet-3-7-bedrock.py b/claude_sonnet-3-7-bedrock.py
index 52f5d5d..d44a9d6 100644
--- a/claude_sonnet-3-7-bedrock.py
+++ b/claude_sonnet-3-7-bedrock.py
@@ -167,7 +167,7 @@ class Pipeline:
                 reasoning_config = {}
             payload = {"modelId": model_id,
                        "messages": processed_messages,
-                       "system": system_message if system_message else 'you are an intelligent ai assistant',
+                       "system": [{'text': system_message['content'] if system_message else 'you are an intelligent ai assistant'}],
                        "inferenceConfig": {"temperature": 1, "maxTokens": body.get("max_tokens", MAX_COMBINED_TOKENS)},
                        "additionalModelRequestFields": reasoning_config
                        }