diff --git a/docker-compose.yml b/docker-compose.yml
index 59d2814..05ce870 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -14,7 +14,7 @@ services:
       - /dev/urandom:/dev/random
       - ${DATA_DIR}/web:/var/www/MISP
     environment:
-      - MYSQL_HOST=db
+      - MYSQL_HOST=${MYSQL_HOST}
       - MYSQL_DATABASE=${MYSQL_DATABASE}
       - MYSQL_USER=${MYSQL_USER}
       - MYSQL_PASSWORD=${MYSQL_PASSWORD}
diff --git a/template.env b/template.env
index f23d46b..96e8ec8 100644
--- a/template.env
+++ b/template.env
@@ -1,3 +1,4 @@
+MYSQL_HOST=db
 MYSQL_DATABASE=misp
 MYSQL_USER=misp
 MYSQL_PASSWORD=misp
@@ -10,4 +11,4 @@ MISP_BASEURL=localhost
 POSTFIX_RELAY_HOST=relay.fqdn
 TIMEZONE=Europe/Brussels
 
-DATA_DIR=./data
\ No newline at end of file
+DATA_DIR=./data