diff --git a/1000-hours/sounds-of-american-english/8.1-inputting-phonemes-and-symbols.md b/1000-hours/sounds-of-american-english/8.1-inputting-phonemes-and-symbols.md
index af321157..2ef54b67 100644
--- a/1000-hours/sounds-of-american-english/8.1-inputting-phonemes-and-symbols.md
+++ b/1000-hours/sounds-of-american-english/8.1-inputting-phonemes-and-symbols.md
@@ -9,7 +9,7 @@ macOS 上有一个收费软件，[Alfred](https://www.alfredapp.com/)，可以
 
 我用 Alfred 作为辅助在电脑上输入各种特殊符号。以下是 Alfred workflow 文件：
 
-> [IPA-Phonetic-Symbols](https:///1000h.org/public/alfred-workflows/IPA-Phonetic-Symbols.alfredworkflow)
+> [IPA-Phonetic-Symbols.alfredworkflow](https:///1000h.org/public/alfred-workflows/IPA-Phonetic-Symbols.alfredworkflow)
 
 以启动关键字 `ipae` 为例 —— 呼出 Alfred：