diff --git a/src/superannotate/lib/app/interface/sdk_interface.py b/src/superannotate/lib/app/interface/sdk_interface.py
index f6beab25..bc6b820e 100644
--- a/src/superannotate/lib/app/interface/sdk_interface.py
+++ b/src/superannotate/lib/app/interface/sdk_interface.py
@@ -659,7 +659,7 @@ def list_users(
         """
         if project is not None:
             if isinstance(project, int):
-                project = self.controller.get_project_by_id(project)
+                project = self.controller.get_project_by_id(project).data
             else:
                 project = self.controller.get_project(project)
         response = BaseSerializer.serialize_iterable(
diff --git a/tests/integration/work_management/test_list_users.py b/tests/integration/work_management/test_list_users.py
new file mode 100644
index 00000000..53c7d321
--- /dev/null
+++ b/tests/integration/work_management/test_list_users.py
@@ -0,0 +1,38 @@
+from superannotate import SAClient
+from tests.integration.base import BaseTestCase
+
+sa = SAClient()
+
+
+class TestListUsers(BaseTestCase):
+    PROJECT_NAME = "TestListUsers"
+    PROJECT_TYPE = "Vector"
+
+    def setUp(self):
+        super().setUp()
+        team_users = sa.list_users()
+        assert len(team_users) > 0
+        scapegoat = [
+            u
+            for u in team_users
+            if u["role"] == "Contributor" and u["state"] == "Confirmed"
+        ][0]
+        self.scapegoat = scapegoat
+        sa.add_contributors_to_project(
+            self.PROJECT_NAME, [scapegoat["email"]], "Annotator"
+        )
+
+    def test_list_users_by_project_name(self):
+        project_users = sa.list_users(project=self.PROJECT_NAME)
+        assert len(project_users) == 1
+        user_1 = project_users[0]
+        assert user_1["role"] == "Annotator"
+        assert user_1["email"] == self.scapegoat["email"]
+
+    def test_list_users_by_project_ID(self):
+        project = sa.get_project_metadata(self.PROJECT_NAME)
+        project_users = sa.list_users(project=project["id"])
+        assert len(project_users) == 1
+        user_1 = project_users[0]
+        assert user_1["role"] == "Annotator"
+        assert user_1["email"] == self.scapegoat["email"]