diff --git a/docs/reference/index-modules/slowlog.asciidoc b/docs/reference/index-modules/slowlog.asciidoc
index c13b180cd323a..1dc84f380f509 100644
--- a/docs/reference/index-modules/slowlog.asciidoc
+++ b/docs/reference/index-modules/slowlog.asciidoc
@@ -22,6 +22,8 @@ index.search.slowlog.threshold.fetch.warn: 1s
 index.search.slowlog.threshold.fetch.info: 800ms
 index.search.slowlog.threshold.fetch.debug: 500ms
 index.search.slowlog.threshold.fetch.trace: 200ms
+
+index.search.slowlog.level: info
 --------------------------------------------------
 
 All of the above settings are _dynamic_ and are set per-index.