diff --git a/{{cookiecutter.project_slug}}/config/settings/local.py b/{{cookiecutter.project_slug}}/config/settings/local.py
index c903795c7..6fc3526fd 100644
--- a/{{cookiecutter.project_slug}}/config/settings/local.py
+++ b/{{cookiecutter.project_slug}}/config/settings/local.py
@@ -61,8 +61,8 @@ import socket
 import os
 # tricks to have debug toolbar when developing with docker
 if os.environ.get('USE_DOCKER') == 'yes':
-    ip = socket.gethostbyname(socket.gethostname())
-    INTERNAL_IPS += [ip[:-1] + '1']
+    hostname, _, ips = socket.gethostbyname_ex(socket.gethostname())
+    INTERNAL_IPS += [ip[:-1] + '1' for ip in ips]
 {% endif %}
 DEBUG_TOOLBAR_CONFIG = {
     'DISABLE_PANELS': [