diff --git a/chat.py b/chat.py
index 43c9974..29f056d 100644
--- a/chat.py
+++ b/chat.py
@@ -170,13 +170,8 @@ class MachaChatSession:
         
         try:
             # Use tool-aware chat API - this handles all tool calling automatically
-            response_data = self.agent._query_ollama_with_tools(
-                messages,
-                tool_definitions=self.agent.tools.get_tool_definitions() if self.agent.enable_tools else []
-            )
-            
-            # Extract the final response
-            ai_response = response_data.get("content", "")
+            # Note: tool definitions are retrieved internally by _query_ollama_with_tools
+            ai_response = self.agent._query_ollama_with_tools(messages)
             
         except Exception as e:
             error_msg = (