diff --git a/backend/mariadb_backend.ml b/backend/mariadb_backend.ml
index b59b4df..dfa9f3d 100644
--- a/backend/mariadb_backend.ml
+++ b/backend/mariadb_backend.ml
@@ -688,10 +688,10 @@ struct
 
           let select_sql =
             {sql|
-              actor_permissions.actor_uuid,
+              guardianDecodeUuid(actor_permissions.actor_uuid),
               actor_permissions.permission,
               actor_permissions.target_model,
-              actor_permissions.target_uuid
+              guardianDecodeUuid(actor_permissions.target_uuid)
             |sql}
           ;;
 
@@ -754,37 +754,21 @@ struct
             Database.exec ?ctx insert_request %> Lwt_result.ok
           ;;
 
-          let delete_model_request =
-            {sql|
-              UPDATE guardian_actor_permissions
-              SET mark_as_deleted = NOW()
-              WHERE actor_uuid = guardianEncodeUuid($1)
-                AND permission = $2
-                AND target_model = $3
-                AND target_uuid = NULL
-            |sql}
-            |> Entity.ActorPermission.t ->. Caqti_type.unit
-          ;;
-
-          let delete_id_request =
+          let delete_request =
             {sql|
               UPDATE guardian_actor_permissions
               SET mark_as_deleted = NOW()
               WHERE actor_uuid = guardianEncodeUuid($1)
                 AND permission = $2
-                AND target_model = NULL
-                AND target_uuid = guardianEncodeUuid($4)
+                AND (($3 IS NULL AND target_model IS NULL) OR target_model = $3)
+                AND (($4 IS NULL AND target_uuid IS NULL) OR target_uuid = guardianEncodeUuid($4))
             |sql}
             |> Entity.ActorPermission.t ->. Caqti_type.unit
           ;;
 
           let delete ?ctx permission =
             let () = clear_cache () in
-            Lwt_result.ok
-            @@ ((match permission.Entity.ActorPermission.target with
-                 | Guard.TargetEntity.Id _ -> delete_id_request
-                 | Guard.TargetEntity.Model _ -> delete_model_request)
-                |> CCFun.flip (Database.exec ?ctx) permission)
+            Database.exec ?ctx delete_request permission |> Lwt_result.ok
           ;;
         end
 
diff --git a/test/main.ml b/test/main.ml
index 9ca1219..d346209 100644
--- a/test/main.ml
+++ b/test/main.ml
@@ -580,6 +580,39 @@ module Tests (Backend : Guard.PersistenceSig) = struct
     |> Lwt.return
   ;;
 
+  let test_drop_actor_permission ?ctx (_ : 'a) () =
+    let open ActorPermission in
+    let open Backend.ActorPermission in
+    let actor_permission_id =
+      create_for_id (snd thomas) Delete chris_article_id
+    in
+    let actor_permission_model =
+      create_for_model (snd thomas) Delete `Article
+    in
+    let check ?(available = true) perm =
+      let msg =
+        Format.asprintf
+          "Validate if actor permission is %s"
+          (if available then "available" else "absent")
+      in
+      find_all ?ctx ()
+      |> Lwt.map (CCList.exists (equal perm))
+      |> Lwt.map (Alcotest.(check bool) msg available)
+    in
+    (let* () = insert ?ctx actor_permission_id in
+     let%lwt () = check actor_permission_id in
+     let* () = delete ?ctx actor_permission_id in
+     let%lwt () = check ~available:false actor_permission_id in
+     let* () = insert ?ctx actor_permission_model in
+     let%lwt () = check actor_permission_model in
+     let* () = delete ?ctx actor_permission_model in
+     let%lwt () = check ~available:false actor_permission_model in
+     Lwt.return_ok ())
+    >|= Alcotest.(check (result unit string))
+          "Read/Delete the actor permissions."
+          (Ok ())
+  ;;
+
   let hacker_cannot_update_article ?ctx (_ : 'a) () =
     let%lwt ben =
       Hacker.to_authorizable ?ctx ben |> Lwt.map CCResult.get_or_failwith
@@ -769,6 +802,10 @@ let () =
         , [ test_case "permissions" `Quick (test_find_permissions_of_actor ?ctx)
           ; test_case "validate existance" `Quick (test_exists_fcn ?ctx)
           ; test_case "remove duplicates" `Quick (test_remove_duplicates ?ctx)
+          ; test_case
+              "Insert/Delete actor permission."
+              `Quick
+              (test_drop_actor_permission ?ctx)
           ] )
       ; ( Format.asprintf "(%s) Validation for Role assignment" name
         , [ test_case "create" `Quick (test_role_assignment_create ?ctx)