diff --git a/.zuul.yaml b/.zuul.yaml
index 12ce938d1..93f755366 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -9,7 +9,6 @@
       openrc_enable_export: true
       devstack_localrc:
         KEYSTONE_ADMIN_ENDPOINT: true
-        USE_PYTHON3: true
     irrelevant-files:
       - ^.*\.rst$
       - ^doc/.*$