diff --git a/specification/appplatform/resource-manager/Microsoft.AppPlatform/preview/2023-09-01-preview/appplatform.json b/specification/appplatform/resource-manager/Microsoft.AppPlatform/preview/2023-09-01-preview/appplatform.json
index daf07c46b5a3..8e2b14b134e2 100644
--- a/specification/appplatform/resource-manager/Microsoft.AppPlatform/preview/2023-09-01-preview/appplatform.json
+++ b/specification/appplatform/resource-manager/Microsoft.AppPlatform/preview/2023-09-01-preview/appplatform.json
@@ -5931,13 +5931,6 @@
           {
             "$ref": "#/parameters/ServiceNameParameter"
           },
-          {
-            "name": "$expand",
-            "in": "query",
-            "description": "The expand expression to apply on the operation.",
-            "required": false,
-            "type": "string"
-          },
           {
             "name": "version",
             "in": "query",
@@ -5949,6 +5942,13 @@
             },
             "collectionFormat": "multi",
             "uniqueItems": false
+          },
+          {
+            "name": "$expand",
+            "in": "query",
+            "description": "The expand expression to apply on the operation.",
+            "required": false,
+            "type": "string"
           }
         ],
         "responses": {