diff --git a/app/backend/src/main/resources/local.properties b/app/backend/src/main/resources/local.properties
index 09d245688be8cded430d509876625bca587bc1b0..2b9cd7791239c3d001144512dd19b6bb708d91af 100644
--- a/app/backend/src/main/resources/local.properties
+++ b/app/backend/src/main/resources/local.properties
@@ -1,4 +1,4 @@
-spring.datasource.url=jdbc:postgresql://${DB_HOST}:${DB_PORT}/${DB_NAME}?sslmode=disable&user=root
+spring.datasource.url=jdbc:postgresql://${host}:${DB_PORT}/${DB_NAME}?sslmode=disable&user=root
 spring.jpa.hibernate.ddl-auto=create-drop
 opencode.host=https://gitlab.opencode.de/
 opencode.analyze-private-repos=false
diff --git a/docker-compose.yml b/docker-compose.yml
index 3d97b3f2c7b1469a53de82807d6be2c25ad763be..e95d7b505295551d21620070bded130e494e881d 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -24,7 +24,7 @@ services:
             - CORS_ORIGIN=* # Must be without quotes i.e. allow everything: * | originally https://sec-kpi.opencode.de
 
             - PORT=4000
-            - DB_HOST=db
+            - host=db
             - DB_USER=sa
             - DB_NAME=dataprovider
             - DB_PORT=26257