diff --git a/llama_cpp/llama_chat_format.py b/llama_cpp/llama_chat_format.py
index 5bda163..ccf4fd0 100644
--- a/llama_cpp/llama_chat_format.py
+++ b/llama_cpp/llama_chat_format.py
@@ -402,7 +402,7 @@ def _convert_completion_to_chat_function(
                                             "type": "function",
                                             "function": {
                                                 "name": tool_name,
-                                                "arguments": "",
+                                                "arguments": chunk["choices"][0]["text"],
                                             },
                                         }
                                     ],