diff --git a/collector/models.py b/collector/models.py
index bd7f6f0..e850293 100644
--- a/collector/models.py
+++ b/collector/models.py
@@ -11,5 +11,5 @@ class Teile(models.Model):
             models.UniqueConstraint(fields=["name"], name="unique_names"),
         ]
         indexes = [
-            models.Index(fields=["modified"], name="modified"),
+            models.Index(fields=["modified"], name="idx_modified"),
         ]