diff --git a/src/keywords.ts b/src/keywords.ts
index 76b84f5..b8c5f7e 100644
--- a/src/keywords.ts
+++ b/src/keywords.ts
@@ -37,6 +37,7 @@ export default [
   "copy",
   "create",
   "cross",
+  "cumulative",
   "current",
   "dedup",
   "data_page_size",