diff --git a/ITPlanning/app.py b/ITPlanning/app.py
index a3fd583..9327e3c 100644
--- a/ITPlanning/app.py
+++ b/ITPlanning/app.py
@@ -11,10 +11,11 @@ from ITPlanning.frontend import frontend
 logger = logging.getLogger("ITPlanning")
 
 
-def create_app():
+def create_app(config):
     """Flask app creation"""
     app = Flask(__name__, static_folder="static", template_folder="view")
-    config = IniConfig()
+    if not config:
+        config = IniConfig()
     app.config.from_object(config)
 
     # set logger