diff --git a/mcord/files/monitoring_synchronizer_config b/mcord/files/monitoring_synchronizer_config
index 1ee96f0..cfd73a0 100644
--- a/mcord/files/monitoring_synchronizer_config
+++ b/mcord/files/monitoring_synchronizer_config
@@ -7,7 +7,7 @@
 name=xos
 user=postgres
 password=password
-host=localhost
+host=xos_db
 port=5432
 
 [api]
diff --git a/mcord/files/openstack_synchronizer_config b/mcord/files/openstack_synchronizer_config
index 20f12d3..82c2f79 100644
--- a/mcord/files/openstack_synchronizer_config
+++ b/mcord/files/openstack_synchronizer_config
@@ -2,7 +2,7 @@
 name=xos
 user=postgres
 password=password
-host=localhost
+host=xos_db
 port=5432
 
 [api]