diff --git a/packages/svelte/src/compiler/phases/1-parse/read/script.js b/packages/svelte/src/compiler/phases/1-parse/read/script.js
index 9d9ed3a1ef..6290127811 100644
--- a/packages/svelte/src/compiler/phases/1-parse/read/script.js
+++ b/packages/svelte/src/compiler/phases/1-parse/read/script.js
@@ -16,7 +16,7 @@ const ALLOWED_ATTRIBUTES = ['context', 'generics', 'lang', 'module'];
 /**
  * @param {Parser} parser
  * @param {number} start
- * @param {Array<AST.Attribute | AST.SpreadAttribute | AST.Directive>} attributes
+ * @param {Array<AST.Attribute | AST.SpreadAttribute | AST.Directive | AST.AttachTag>} attributes
  * @returns {AST.Script}
  */
 export function read_script(parser, start, attributes) {
diff --git a/packages/svelte/src/compiler/phases/1-parse/read/style.js b/packages/svelte/src/compiler/phases/1-parse/read/style.js
index 29e8a0e541..8f01af3b75 100644
--- a/packages/svelte/src/compiler/phases/1-parse/read/style.js
+++ b/packages/svelte/src/compiler/phases/1-parse/read/style.js
@@ -18,7 +18,7 @@ const REGEX_HTML_COMMENT_CLOSE = /-->/;
 /**
  * @param {Parser} parser
  * @param {number} start
- * @param {Array<AST.Attribute | AST.SpreadAttribute | AST.Directive>} attributes
+ * @param {Array<AST.Attribute | AST.SpreadAttribute | AST.Directive | AST.AttachTag>} attributes
  * @returns {AST.CSS.StyleSheet}
  */
 export default function read_style(parser, start, attributes) {