diff --git a/gallery/llama3.2-fcall.yaml b/gallery/llama3.2-fcall.yaml
index 5b0a53a189e4..73f370a8ffcd 100644
--- a/gallery/llama3.2-fcall.yaml
+++ b/gallery/llama3.2-fcall.yaml
@@ -13,6 +13,7 @@ config_file: |
         value: ""
     grammar:
       properties_order: "name,arguments"
+      function_arguments_key: "arguments"
   template:
     chat: |
       <|start_header_id|>system<|end_header_id|>