diff --git a/docs/sources/setup/upgrade/_index.md b/docs/sources/setup/upgrade/_index.md
index 5b89e580b058..03c4c0cb60d3 100644
--- a/docs/sources/setup/upgrade/_index.md
+++ b/docs/sources/setup/upgrade/_index.md
@@ -133,6 +133,7 @@ Loki 3.0 will automatically assign a `service_name` label to all ingested logs b
 
 Loki will attempt to create the `service_name` label by looking for the following labels in this order:
 
+  - service_name
   - service
   - app
   - application