diff --git a/compute-1-mep/wallabag/docker-compose.yaml b/compute-1-mep/wallabag/docker-compose.yaml
index 91b0da1..7da3f4e 100644
--- a/compute-1-mep/wallabag/docker-compose.yaml
+++ b/compute-1-mep/wallabag/docker-compose.yaml
@@ -17,12 +17,12 @@ services:
       - SYMFONY__ENV__FOSUSER_REGISTRATION=true
       - SYMFONY__ENV__FOSUSER_CONFIRMATION=true
       - POPULATE_DATABASE=False
-      - SYMFONY__ENV__DATABASE_HOST=$(MEP_DB_HOST_IP)
-      - SYMFONY__ENV__DATABASE_NAME=$(WALLABAG_DB_NAME)
-      - SYMFONY__ENV__DATABASE_USER=$(WALLABAG_DB_USER)
-      - SYMFONY__ENV__DATABASE_PASSWORD="$(WALLABAG_DB_PASS)"
-      - SYMFONY__ENV__MAILER_DSN=smtp://service%40gnous.eu:$(SMTP_PASS)@$(SMTP_HOST)
-      - SYMFONY__ENV__SECRET=$(WALLABAG_SECRET)
+      - SYMFONY__ENV__DATABASE_HOST=${MEP_DB_HOST_IP}
+      - SYMFONY__ENV__DATABASE_NAME=${WALLABAG_DB_NAME}
+      - SYMFONY__ENV__DATABASE_USER=${WALLABAG_DB_USER}
+      - SYMFONY__ENV__DATABASE_PASSWORD="${WALLABAG_DB_PASS}"
+      - SYMFONY__ENV__MAILER_DSN=smtp://service%40gnous.eu:${SMTP_PASS}@${SMTP_HOST}
+      - SYMFONY__ENV__SECRET=${WALLABAG_SECRET}
     ports:
       - "3009:80"
     volumes: