diff --git a/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/stable/2023-10-01/mfe.json b/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/stable/2023-10-01/mfe.json
index a20b8e5090ec..434e49285c69 100644
--- a/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/stable/2023-10-01/mfe.json
+++ b/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/stable/2023-10-01/mfe.json
@@ -6652,6 +6652,12 @@
                 }
               ]
             }
+          },
+          {
+            "in": "query",
+            "name": "properties",
+            "description": "Comma-separated list of user property names (and optionally values). Example: prop1,prop2=value2",
+            "type": "string"
           }
         ],
         "responses": {