diff --git a/runbot/container.py b/runbot/container.py
index c9152fa8..f6014b86 100644
--- a/runbot/container.py
+++ b/runbot/container.py
@@ -133,7 +133,7 @@ def _docker_run(cmd=False, log_path=False, build_dir=False, container_name=False
                       This directory is shared as a volume with the container
     :param container_name: used to give a name to the container for later reference
     :param image_tag: Docker image tag name to select which docker image to use
-    :param exposed_ports: if not None, starting at 8069, ports will be exposed as exposed_ports numbers
+    :param exposed_ports: if not None, ports will be exposed as exposed_ports numbers
     :param memory: memory limit in bytes for the container
     :params ro_volumes: dict of dest:source volumes to mount readonly in builddir
     :params env_variables: list of environment variables
@@ -171,7 +171,7 @@ def _docker_run(cmd=False, log_path=False, build_dir=False, container_name=False
 
     ports = {}
     if exposed_ports:
-        for dp, hp in enumerate(exposed_ports, start=8069):
+        for dp, hp in exposed_ports.items():
             ports[f'{dp}/tcp'] = ('127.0.0.1', hp)
 
     ulimits = [docker.types.Ulimit(name='core', soft=0, hard=0)]  # avoid core dump in containers
diff --git a/runbot/models/build_config.py b/runbot/models/build_config.py
index 64ce96ea..a8f86260 100644
--- a/runbot/models/build_config.py
+++ b/runbot/models/build_config.py
@@ -383,7 +383,12 @@ class ConfigStep(models.Model):
         except Exception:
             _logger.exception('An error occured while reloading nginx')
             build._log('', "An error occured while reloading nginx, skipping")
-        return dict(cmd=cmd, container_name=docker_name, exposed_ports=[build_port, build_port + 1], ro_volumes=exports, env_variables=env_variables)
+
+        exposed_ports = {
+            build_port: 8069,
+            build_port + 1: 8070,
+        }
+        return dict(cmd=cmd, container_name=docker_name, exposed_ports=exposed_ports, ro_volumes=exports, env_variables=env_variables)
 
     def _run_install_odoo(self, build):
         exports = build._checkout()