diff --git a/readthedocs/projects/tasks.py b/readthedocs/projects/tasks.py
index 21b7bc5d0d4..d82cebe1491 100644
--- a/readthedocs/projects/tasks.py
+++ b/readthedocs/projects/tasks.py
@@ -779,6 +779,8 @@ def email_notification(version, build, email):
 
 
 def webhook_notification(version, build, hook_url):
+    project = version.project
+
     data = json.dumps({
         'name': project.name,
         'slug': project.slug,