diff --git a/Install-Shadowsocks-Server-on-Windows.md b/Install-Shadowsocks-Server-on-Windows.md
index 0e045db..c2f32ba 100644
--- a/Install-Shadowsocks-Server-on-Windows.md
+++ b/Install-Shadowsocks-Server-on-Windows.md
@@ -8,4 +8,4 @@ Notice: this page is for server side. If you are looking for clients, visit [cli
 ````
  pip install shadowsocks
 ````
-5. If you want to use `salsa20` or `chacha20` encryption, download [libsodium](http://download.libsodium.org/libsodium/releases/) and put dll files (without path) into `C:\Windows\System32` (32bit) or `C:\Windows\SysWOW64` (64bit).
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+5. If you want to use `salsa20` or `chacha20` encryption, download [libsodium](http://download.libsodium.org/libsodium/releases/) and put dll files (without path) into `C:\Windows\System32` or `C:\Windows\SysWOW64` (32bit Python on 64bit Windows).
\ No newline at end of file