diff --git a/redfish-core/src/error_messages.cpp b/redfish-core/src/error_messages.cpp
index 2254195..c688fdc 100644
--- a/redfish-core/src/error_messages.cpp
+++ b/redfish-core/src/error_messages.cpp
@@ -1289,7 +1289,7 @@
 void propertyUnknown(crow::Response& res, std::string_view arg1)
 {
     res.result(boost::beast::http::status::bad_request);
-    addMessageToJson(res.jsonValue, propertyUnknown(arg1), arg1);
+    addMessageToErrorJson(res.jsonValue, propertyUnknown(arg1));
 }
 
 /**