diff --git a/web/book/src/reference/stdlib/transforms/aggregate.md b/web/book/src/reference/stdlib/transforms/aggregate.md
index 240b5081d555..0d9647da8c99 100644
--- a/web/book/src/reference/stdlib/transforms/aggregate.md
+++ b/web/book/src/reference/stdlib/transforms/aggregate.md
@@ -14,7 +14,7 @@ aggregate {expression or assign operations}
 <!-- prettier-ignore -->
 > [!NOTE]
 > Currently, all declared aggregation functions are `min`, `max`,
-> `count`, `average`, `stddev`, `avg` and `sum`. We are in the
+> `count`, `count_distinct`, `average`, `stddev` and `sum`. We are in the
 > process of filling out [std lib](../).
 
 ## Examples