diff --git a/tests/templates/kolla-build.conf.j2 b/tests/templates/kolla-build.conf.j2
index f9a501da27..e66006ef49 100644
--- a/tests/templates/kolla-build.conf.j2
+++ b/tests/templates/kolla-build.conf.j2
@@ -14,3 +14,6 @@ tag = {{ (zuul.tag if zuul.pipeline == "release" else zuul.branch | basename) ~
 push = false
 logs_dir = {{ kolla_build_logs_dir }}
 template_override = /etc/kolla/template_overrides.j2
+# NOTE(yoctozepto): to avoid issues with IPv6 not enabled in the docker daemon
+# and since we don't need isolated networks here, use host networking
+network_mode = host