diff --git a/bukuserver/server.py b/bukuserver/server.py
index 69e8a8c..68063ef 100644
--- a/bukuserver/server.py
+++ b/bukuserver/server.py
@@ -516,7 +516,7 @@ def search_bookmarks():
     return res
 
 
-def create_app(config_filename=None):
+def create_app(db_file=None):
     """create app."""
     app = FlaskAPI(__name__)
     per_page = int(os.getenv('BUKUSERVER_PER_PAGE', str(views.DEFAULT_PER_PAGE)))
@@ -527,7 +527,7 @@ def create_app(config_filename=None):
         url_render_mode = views.DEFAULT_URL_RENDER_MODE
     app.config['BUKUSERVER_URL_RENDER_MODE'] = url_render_mode
     app.config['SECRET_KEY'] = os.getenv('BUKUSERVER_SECRET_KEY') or os.urandom(24)
-    app.config['BUKUSERVER_DB_FILE'] = os.getenv('BUKUSERVER_DB_FILE')
+    app.config['BUKUSERVER_DB_FILE'] = os.getenv('BUKUSERVER_DB_FILE') or db_file
     bukudb = BukuDb(dbfile=app.config['BUKUSERVER_DB_FILE'])
     app.app_context().push()
     setattr(flask.g, 'bukudb', bukudb)
diff --git a/tests/test_server.py b/tests/test_server.py
index c9ac243..d2c0750 100644
--- a/tests/test_server.py
+++ b/tests/test_server.py
@@ -1,5 +1,6 @@
-import pytest
 from click.testing import CliRunner
+import flask
+import pytest
 
 from bukuserver import server
 
@@ -15,3 +16,12 @@ def test_cli(args, word):
     result = runner.invoke(server.cli, [args])
     assert result.exit_code == 0
     assert word in result.output
+
+
+def test_home(tmp_path):
+    test_db = tmp_path / 'test.db'
+    app = server.create_app(test_db.as_posix())
+    client = app.test_client()
+    rd = client.get('/')
+    assert rd.status_code == 200
+    assert not flask.g.bukudb.get_rec_all()