diff --git a/pkg/sql/parser/sql.y b/pkg/sql/parser/sql.y
index c90a74384101..7fcbb7c86cf0 100644
--- a/pkg/sql/parser/sql.y
+++ b/pkg/sql/parser/sql.y
@@ -9866,6 +9866,7 @@ returning_clause:
 // %Text:
 // UPDATE <tablename> [[AS] <name>]
 //        SET ...
+//        [FROM <source>]
 //        [WHERE <expr>]
 //        [ORDER BY <exprs...>]
 //        [LIMIT <expr>]