diff --git a/How-to-install.md b/How-to-install.md
index d6df4fe..a7edf10 100644
--- a/How-to-install.md
+++ b/How-to-install.md
@@ -54,10 +54,10 @@ You don't need to set them all, just set those ones you care about.
 Explanations :
 
 - `--home` is a customized dir to install `acme.sh` in.  By default, it installs into `~/.acme.sh` 
-- `--config-home` is a writable folder, acme.sh will all the files(including cert/keys, configs) there. By default, it's same as `--home`
-- `--certhome` is a customized dir to save the certs you issue.  By default, it's same as `--config-home`.
+- `--config-home` is a writable folder, acme.sh will write all the files(including cert/keys, configs) there. By default, it's in `--home`
+- `--certhome` is a customized dir to save the certs you issue.  By default, it's saved in `--config-home`.
 - `--accountemail` is the email used to register account to Let's Encrypt,  you will receive renewal notice email here. Default is empty.
-- `--accountkey` is the file saving your account private key.  By default it's saved in `--home`.
+- `--accountkey` is the file saving your account private key.  By default it's saved in `--config-home`.
 - `--useragent`  is the user-agent header value used to send to Let's Encrypt.