diff --git a/source/core/query-plans.txt b/source/core/query-plans.txt
index dcf8bac7ad6..cd5b65bcc09 100644
--- a/source/core/query-plans.txt
+++ b/source/core/query-plans.txt
@@ -88,6 +88,8 @@ plan and re-evaluates after any of the following events:
 
 - The :program:`mongod` process restarts.
 
+- You run a query with :method:`~cursor.explain().
+
 Cached Query Plan Interface
 ---------------------------