diff --git a/src/main/resources/reference.conf b/src/main/resources/reference.conf
index 03dc8157f..ff79295e1 100644
--- a/src/main/resources/reference.conf
+++ b/src/main/resources/reference.conf
@@ -615,15 +615,9 @@ resourceTypes = {
       launch_notebook_cluster = {
         description = "launch a new notebook cluster in this google-project"
       }
-      list_persistent_disk = {
-        description = "list all persistent disks in this google-project"
-      }
       create_persistent_disk = {
         description = "create persistent disk in this google-project"
       }
-      delete_persistent_disk = {
-        description = "delete persistent disk in this google-project"
-      }
       create_kubernetes_app = {
         description = "create kubernetes application in this google-project"
       }