diff --git a/docsite/rst/playbooks_environment.rst b/docsite/rst/playbooks_environment.rst
index da050f007d..f909bfcd6e 100644
--- a/docsite/rst/playbooks_environment.rst
+++ b/docsite/rst/playbooks_environment.rst
@@ -31,7 +31,7 @@ The environment can also be stored in a variable, and accessed like so::
       tasks:
 
         - apt: name=cobbler state=installed
-          environment: proxy_env
+          environment: "{{proxy_env}}"
 
 You can also use it at a playbook level::