diff --git a/model/clusters_mgmt/v1/provider_data_inquiry_type.model b/model/clusters_mgmt/v1/provider_data_inquiry_type.model
index 0bcb8a73..a6707c26 100644
--- a/model/clusters_mgmt/v1/provider_data_inquiry_type.model
+++ b/model/clusters_mgmt/v1/provider_data_inquiry_type.model
@@ -35,5 +35,5 @@ struct CloudProviderData {
     Version Version
 
     // Availability zone
-    AvailabilityZone String
+    AvailabilityZones []String
 }