diff --git a/add-ons/shared_file_system.2020.11.json b/add-ons/shared_file_system.2020.11.json
index ab5bf47f..53133414 100644
--- a/add-ons/shared_file_system.2020.11.json
+++ b/add-ons/shared_file_system.2020.11.json
@@ -260,6 +260,10 @@
       "required_since": "2020.11",
       "tests": {
         "manila_tempest_tests.tests.api.test_shares_actions.SharesActionsTest.test_shrink_share": {
+          "flagged": {
+            "date": "2021-04-09",
+            "reason": "D405 Test depends on a backend feature capable of shrinking shares, there might be a few backends that do not support shrinking shares, f.e. LVM"
+          },
           "idempotent_id": "id-8f64b930-9b4e-41d7-bbd6-82d9951931f3"
         }
       }