diff --git a/scripts/upgrade.sh b/scripts/upgrade.sh
index b29615fb1..c70b3b42a 100755
--- a/scripts/upgrade.sh
+++ b/scripts/upgrade.sh
@@ -23,8 +23,13 @@ fi
 
 # Backup database
 SQL_BACKUP_PATH="$PEERTUBE_PATH/backup/sql-peertube_prod-$(date +"%Y%m%d-%H%M").bak" 
+DB_USER=$(node -e "console.log(require('js-yaml').safeLoad(fs.readFileSync('$PEERTUBE_PATH/config/production.yaml', 'utf8'))['database']['username'])")
+DB_PASS=$(node -e "console.log(require('js-yaml').safeLoad(fs.readFileSync('$PEERTUBE_PATH/config/production.yaml', 'utf8'))['database']['password'])")
+DB_HOST=$(node -e "console.log(require('js-yaml').safeLoad(fs.readFileSync('$PEERTUBE_PATH/config/production.yaml', 'utf8'))['database']['hostname'])")
+DB_SUFFIX=$(node -e "console.log(require('js-yaml').safeLoad(fs.readFileSync('$PEERTUBE_PATH/config/production.yaml', 'utf8'))['database']['suffix'])")
 mkdir -p $PEERTUBE_PATH/backup
-pg_dump -U peertube -W -h localhost -F c peertube_prod -f "$SQL_BACKUP_PATH" 
+
+PGPASSWORD=$DB_PASS pg_dump -U $DB_USER -h $DB_HOST -F c "peertube${DB_SUFFIX}" -f "$SQL_BACKUP_PATH"
 
 # If there is a pre-release, give the user a choice which one to install.
 RELEASE_VERSION=$(curl -s https://api.github.com/repos/chocobozzz/peertube/releases/latest | grep tag_name | cut -d '"' -f 4)