diff --git a/lib/ansible/modules/web_infrastructure/ansible_tower/tower_job_launch.py b/lib/ansible/modules/web_infrastructure/ansible_tower/tower_job_launch.py
index 1fa3d236b0..648e260632 100644
--- a/lib/ansible/modules/web_infrastructure/ansible_tower/tower_job_launch.py
+++ b/lib/ansible/modules/web_infrastructure/ansible_tower/tower_job_launch.py
@@ -54,7 +54,7 @@ options:
       default: null
     extra_vars:
       description:
-        - Extra_vars to use for the job_template. Use '@' for a file.
+        - Extra_vars to use for the job_template. Prepend '@' if a file.
       default: null
     limit:
       description: