diff --git a/OpenAI-DotNet/Common/ResponseFormatObject.cs b/OpenAI-DotNet/Common/ResponseFormatObject.cs
index 4026dac5..926f3e3f 100644
--- a/OpenAI-DotNet/Common/ResponseFormatObject.cs
+++ b/OpenAI-DotNet/Common/ResponseFormatObject.cs
@@ -16,6 +16,6 @@ public sealed class ResponseFormatObject
 
         public static implicit operator ResponseFormatObject(ResponseFormat type) => new(type);
 
-        public static implicit operator ResponseFormat(ResponseFormatObject type) => type.Type;
+        public static implicit operator ResponseFormat(ResponseFormatObject format) => format.Type;
     }
 }