diff --git a/tox.ini b/tox.ini
index f603de8e3..f90f71b6a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -69,7 +69,7 @@ setenv=
   ANSIBLE_STDOUT_CALLBACK = debug
   docker_cluster: PLAYBOOK = site-docker.yml.sample
   docker_dedicated_journal: PLAYBOOK = site-docker.yml.sample
-  docker_dmcrypt_journal_collocation = site-docker.yml.sample
+  docker_dmcrypt_journal_collocation: PLAYBOOK = site-docker.yml.sample
 deps=
   ansible1.9: ansible==1.9.4
   ansible2.1: ansible==2.1