diff --git a/knowledge base/loki.md b/knowledge base/loki.md
index 031558c..2aabf68 100644
--- a/knowledge base/loki.md
+++ b/knowledge base/loki.md
@@ -75,6 +75,9 @@ Loki runs in multi-tenant mode by default. It:
Loki accepts out-of-order writes by default.
+Retention in Loki is taken care of through the Compactor.
+By default the `-compactor.retention-enabled` flag is **not** set, so logs sent to Loki live forever.
+
Setup