diff --git a/azurerm/internal/services/kusto/kusto_cluster_resource.go b/azurerm/internal/services/kusto/kusto_cluster_resource.go
index d9af417a9d7af..249ac93721c55 100644
--- a/azurerm/internal/services/kusto/kusto_cluster_resource.go
+++ b/azurerm/internal/services/kusto/kusto_cluster_resource.go
@@ -329,7 +329,7 @@ func expandKustoClusterSku(d *schema.ResourceData) (*kusto.AzureSku, error) {
 }
 
 func expandKustoClusterVNET(input []interface{}) *kusto.VirtualNetworkConfiguration {
-	if len(input) == 0 {
+	if len(input) == 0 || input[0] == nil {
 		return nil
 	}