diff --git a/README.md b/README.md
index 9e9db48..5d2c3cc 100644
--- a/README.md
+++ b/README.md
@@ -98,7 +98,8 @@ Select rtty in menuconfig and compile it
         -d, --description=string Add a description to the device(Maximum 126 bytes)
         -a                       Auto reconnect to the server
         -s                       SSL on
-        -C, --cacert             CA certificate to verify peer against"
+        -C, --cacert             CA certificate to verify peer against
+        -x, --insecure           Allow insecure server connections when using SSL
         -c, --cert               Certificate file to use"
         -k, --key                Private key file to use"
         -D                       Run in the background
diff --git a/README_ZH.md b/README_ZH.md
index d8ced8c..1113545 100644
--- a/README_ZH.md
+++ b/README_ZH.md
@@ -100,7 +100,8 @@ rtty非常适合远程维护您的或者您的公司的部署在全球各地的
         -d, --description=string Add a description to the device(Maximum 126 bytes)
         -a                       Auto reconnect to the server
         -s                       SSL on
-        -C, --cacert             CA certificate to verify peer against"
+        -C, --cacert             CA certificate to verify peer against
+        -x, --insecure           Allow insecure server connections when using SSL
         -c, --cert               Certificate file to use"
         -k, --key                Private key file to use"
         -D                       Run in the background