diff --git a/docs/development/tech_docu/celery.md b/docs/development/tech_docu/celery.md
index 4d87fc09..f92a0cb1 100644
--- a/docs/development/tech_docu/celery.md
+++ b/docs/development/tech_docu/celery.md
@@ -96,7 +96,7 @@ def long_runner():
     my_tasks = list()
     for _ in range(10):
         task_signature = example.si()
-        my_task.append(task_signature)
+        my_tasks.append(task_signature)
 
     chain(my_tasks).delay()
 ```