diff --git a/vision_agent/tools/tools.py b/vision_agent/tools/tools.py
index 4b1e166e..6c2120d4 100644
--- a/vision_agent/tools/tools.py
+++ b/vision_agent/tools/tools.py
@@ -1181,8 +1181,7 @@ def florence2_phrase_grounding(
             fine_tuning=FineTuning(job_id=UUID(fine_tune_id)),
         )
         data = data_obj.model_dump(by_alias=True)
-        metadata = {"function_name": "florence2_phrase_grounding"}
-        detections = send_inference_request(data, "tools", v2=False, metadata=metadata)
+        detections = send_inference_request(data, "tools", v2=False, metadata_payload={"function_name": "florence2_phrase_grounding"})
     else:
         data = {
             "image": image_b64,