diff --git a/specification/eventhub/resource-manager/Microsoft.EventHub/preview/2018-01-01-preview/EventHub-preview.json b/specification/eventhub/resource-manager/Microsoft.EventHub/preview/2018-01-01-preview/EventHub-preview.json
index 44f156bce753..a24610e4213c 100644
--- a/specification/eventhub/resource-manager/Microsoft.EventHub/preview/2018-01-01-preview/EventHub-preview.json
+++ b/specification/eventhub/resource-manager/Microsoft.EventHub/preview/2018-01-01-preview/EventHub-preview.json
@@ -1326,11 +1326,23 @@
       "description": "Single Event Hubs Cluster resource in List or Get operations."
     },
     "AvailableClustersList": {
+      "properties": {
+        "value": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/AvailableCluster"
+          },
+          "description": "The count of readily available and pre-provisioned Event Hubs Clusters per region."
+        }
+      },
+      "description": "The response of the List Available Clusters operation."
+    },
+    "AvailableCluster": {
       "type": "object",
       "additionalProperties": {
         "type": "integer"
       },
-      "description": "Pre-provisioned Event Hubs Cluster count per region with such clusters available."
+      "description": "Pre-provisioned and readily available Event Hubs Cluster count per region."
     },
     "ClusterListResult": {
       "properties": {
diff --git a/specification/eventhub/resource-manager/Microsoft.EventHub/preview/2018-01-01-preview/examples/Clusters/ListAvailableClustersGet.json b/specification/eventhub/resource-manager/Microsoft.EventHub/preview/2018-01-01-preview/examples/Clusters/ListAvailableClustersGet.json
index 9c4d9e19e777..2a69899063fa 100644
--- a/specification/eventhub/resource-manager/Microsoft.EventHub/preview/2018-01-01-preview/examples/Clusters/ListAvailableClustersGet.json
+++ b/specification/eventhub/resource-manager/Microsoft.EventHub/preview/2018-01-01-preview/examples/Clusters/ListAvailableClustersGet.json
@@ -5,8 +5,14 @@
     "responses": {
         "200": {
             "body": {
-                "westus": 1,
-                "eastus": 2
+                "value": [
+                    {
+                        "westus": 5
+                    },
+                    {
+                        "eastus": 4
+                    }
+                ]
             }
         }
     }