diff --git a/ihatemoney/manage.py b/ihatemoney/manage.py
index 3207b558..a9eca0f3 100755
--- a/ihatemoney/manage.py
+++ b/ihatemoney/manage.py
@@ -10,7 +10,7 @@ from flask_migrate import Migrate, MigrateCommand
 from werkzeug.security import generate_password_hash
 
 from ihatemoney.run import create_app
-from ihatemoney.models import db
+from ihatemoney.models import db, Project
 from ihatemoney.utils import create_jinja_env
 
 
@@ -57,6 +57,13 @@ class GenerateConfig(Command):
         ))
 
 
+class DeleteProject(Command):
+    def run(self, project_name):
+        demo_project = Project.query.get(project_name)
+        db.session.delete(demo_project)
+        db.session.commit()
+
+
 def main():
     QUIET_COMMANDS = ('generate_password_hash', 'generate-config')
 
@@ -76,6 +83,7 @@ def main():
     manager.add_command('db', MigrateCommand)
     manager.add_command('generate_password_hash', GeneratePasswordHash)
     manager.add_command('generate-config', GenerateConfig)
+    manager.add_command('delete-project', DeleteProject)
     manager.run()
 
 
diff --git a/ihatemoney/tests/tests.py b/ihatemoney/tests/tests.py
index fd72a8da..63a73942 100644
--- a/ihatemoney/tests/tests.py
+++ b/ihatemoney/tests/tests.py
@@ -20,7 +20,8 @@ from flask import session
 from flask_testing import TestCase
 
 from ihatemoney.run import create_app, db, load_configuration
-from ihatemoney.manage import GenerateConfig, GeneratePasswordHash
+from ihatemoney.manage import (
+    GenerateConfig, GeneratePasswordHash, DeleteProject)
 from ihatemoney import models
 from ihatemoney import utils
 
@@ -1472,6 +1473,15 @@ class CommandTestCase(BaseTestCase):
             print(stdout.getvalue())
             self.assertEqual(len(stdout.getvalue().strip()), 187)
 
+    def test_demo_project_deletion(self):
+        self.create_project('demo')
+        self.assertEquals(models.Project.query.get('demo').name, 'demo')
+
+        cmd = DeleteProject()
+        cmd.run('demo')
+
+        self.assertEqual(len(models.Project.query.all()), 0)
+
 
 if __name__ == "__main__":
     unittest.main()