diff --git a/atlas/models.py b/atlas/models.py
index 9b0b8d36..8e2cf910 100644
--- a/atlas/models.py
+++ b/atlas/models.py
@@ -122,7 +122,7 @@ class Case(models.Model):
         help_text="If a question should be freely available to browse", default=True
     )
 
-    series = SortedManyToManyField("Series", related_name="atlas")
+    series = SortedManyToManyField("Series", related_name="case")
 
     notes = GenericRelation(QuestionNote)