diff --git a/storyboard/api/v1/project_groups.py b/storyboard/api/v1/project_groups.py
index d0a220d7..6ca01e5a 100644
--- a/storyboard/api/v1/project_groups.py
+++ b/storyboard/api/v1/project_groups.py
@@ -282,8 +282,6 @@ class ProjectGroupsController(rest.RestController):
             project_groups.project_group_delete(project_group_id)
         except exc.NotFound as not_found_exc:
             abort(404, not_found_exc.message)
-        except exc.NotEmpty as not_empty_exc:
-            abort(400, not_empty_exc.message)
 
     projects = ProjectsSubcontroller()
 
diff --git a/storyboard/db/api/project_groups.py b/storyboard/db/api/project_groups.py
index 9b5d59aa..d08cd305 100644
--- a/storyboard/db/api/project_groups.py
+++ b/storyboard/db/api/project_groups.py
@@ -174,7 +174,4 @@ def project_group_delete(project_group_id):
     if not project_group:
         raise exc.NotFound(_('Project group not found.'))
 
-    if len(project_group.projects) > 0:
-        raise exc.NotEmpty(_('Project group must be empty.'))
-
     api_base.entity_hard_delete(models.ProjectGroup, project_group_id)
diff --git a/storyboard/tests/api/test_project_groups.py b/storyboard/tests/api/test_project_groups.py
index 717d705c..de9e5304 100644
--- a/storyboard/tests/api/test_project_groups.py
+++ b/storyboard/tests/api/test_project_groups.py
@@ -103,13 +103,13 @@ class TestProjectGroups(base.FunctionalTest):
         # check for a too short name
         self.assertRaises(AppError, self.put_json, url, delta)
 
-    def test_delete_invalid(self):
-        # try to delete project group with projects
-        # she can't be deleted, because
-        # only empty project groups can be deleted
+    def test_delete_nonempty_valid(self):
+        # check if a non-empty project_group
+        # is deleted successfully with response
+        # code 204
 
         response = self.delete(self.resource + '/2', expect_errors=True)
-        self.assertEqual(400, response.status_code)
+        self.assertEqual(204, response.status_code)
 
     def test_delete(self):
         # create new empty project group with name 'testProjectGroup'