diff --git a/files/ja/web/javascript/reference/errors/deprecated_octal_literal/index.md b/files/ja/web/javascript/reference/errors/deprecated_octal_literal/index.md
index c0e9c3bac87d5f..8933fc7ff6fe92 100644
--- a/files/ja/web/javascript/reference/errors/deprecated_octal_literal/index.md
+++ b/files/ja/web/javascript/reference/errors/deprecated_octal_literal/index.md
@@ -1,5 +1,5 @@
 ---
-title: "SyntaxError: \"0\"-prefixed octal literals and octal escape seq. are deprecated"
+title: 'SyntaxError: "0"-prefixed octal literals and octal escape seq. are deprecated'
 slug: Web/JavaScript/Reference/Errors/Deprecated_octal_literal
 original_slug: Web/JavaScript/Reference/Errors/Deprecated_octal
 ---