diff --git a/source/app/__init__.py b/source/app/__init__.py
index 75124640b..443738b0f 100644
--- a/source/app/__init__.py
+++ b/source/app/__init__.py
@@ -167,10 +167,10 @@ def after_request(response):
 
 try:
 
-    run_post_init(development=app.config["DEVELOPMENT"])
+    run_post_init(development=app.config['DEVELOPMENT'])
 
 except Exception as e:
-    app.logger.exception(f"Post init failed. IRIS not started")
+    app.logger.exception('Post init failed. IRIS not started')
     raise e
 
 lm.user_loader(load_user)