diff --git a/file/lib/domains/cn/ac/ioa/mail.txt b/file/lib/domains/cn/ac/ioa/mail.txt
deleted file mode 100644
index 4696eb3fff..0000000000
--- a/file/lib/domains/cn/ac/ioa/mail.txt
+++ /dev/null
@@ -1 +0,0 @@
-中国科学院大学
\ No newline at end of file
diff --git a/lib/domains/cn/ac/ioa/mail.txt b/lib/domains/cn/ac/ioa/mail.txt
new file mode 100644
index 0000000000..8b4c33e205
--- /dev/null
+++ b/lib/domains/cn/ac/ioa/mail.txt
@@ -0,0 +1,2 @@
+中国科学院大学
+Institute of Acoustics, Chinese Academy of Sciences