diff --git a/bin/convertdomain b/bin/convertdomain
index df0825e..31b9e88 100755
--- a/bin/convertdomain
+++ b/bin/convertdomain
@@ -857,7 +857,7 @@ convert_bookstack() {
   sed -i "s#$DOMAIN#$DOMAIN_NEW#g" /federated/apps/bookstack/.env
   sed -i "s#$DOMAIN#$DOMAIN_NEW#g" /federated/apps/bookstack/data/config/www/.env
 
-  docker exec pdnsmysql bash -c "mysql -uroot -P$MYSQL_ROOTPASSWORD -e \"update users set email='admin@$DOMAIN_NEW' where id = 1;\""
+  docker exec pdnsmysql bash -c "mysql -uroot -p$MYSQL_ROOTPASSWORD -e \"update users set email='admin@$DOMAIN_NEW' where id = 1;\""
 
   # Grab the container IP from docker-compose
   SERVICE_IP=`grep ipv4_address /federated/apps/bookstack/docker-compose.yml | awk '{ print $2 }'`