diff --git a/specification/esql/query/QueryRequest.ts b/specification/esql/query/QueryRequest.ts
index 9cdd6ddb58..3571e34140 100644
--- a/specification/esql/query/QueryRequest.ts
+++ b/specification/esql/query/QueryRequest.ts
@@ -34,7 +34,7 @@ export interface Request extends RequestBase {
      */
     format?: string
     /**
-     * The character to use between values within a CSV row. Only valid for the csv format.
+     * The character to use between values within a CSV row. Only valid for the CSV format.
      */
     delimiter?: string
   }