diff --git a/.zuul.yaml b/.zuul.yaml
index 0ab8847..a8bbe66 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -2,4 +2,8 @@
 - project:
     check:
       jobs:
-        - tox
+        - tox:
+            vars:
+              tox_envlist: ALL
+              tox_install_siblings: false
+...
diff --git a/bindep.txt b/bindep.txt
new file mode 100644
index 0000000..3e33e5d
--- /dev/null
+++ b/bindep.txt
@@ -0,0 +1 @@
+krb5-devel [platform:redhat]