diff --git a/docker-compose.development.yml b/docker-compose.development.yml
index 564eae38..3ae1b9c5 100644
--- a/docker-compose.development.yml
+++ b/docker-compose.development.yml
@@ -2,6 +2,8 @@ version: "3.5"
 
 services:
   nopaque:
+    environment:
+      - FLASK_ENV=development
     ports:
       - "5000:5000"
     volumes: