diff --git a/Home.md b/Home.md
index 3df0b8c..100bc66 100644
--- a/Home.md
+++ b/Home.md
@@ -43,6 +43,8 @@ After you issue the cert, you can use the `toPkcs` command to convert the cert t
 acme.sh  --toPkcs  -d <domain>  [--password pfx-password]
 ```
 
+Important note: If you do not specify a password on the command line, OpenSSH itself will prompt you for one and the pkcs12(pfx) file will be generated. However, it will **not** be regenerated during certificate renewal. You **must** specify a **non-blank** password on the command line in order for acme.sh to regenerate the pkcs12(pfx) when renewing certificates. 
+
 ## 4. How to run on Windows with Cygwin or git bash.
 1) Download cygwin installer: setup-x86.exe  or setup-x86_64.exe
 from: [https://cygwin.com/](https://cygwin.com/)