diff --git a/docs/http/mutual-tls.mdx b/docs/http/mutual-tls.mdx
index 1d5d45b50..73ec1cd68 100644
--- a/docs/http/mutual-tls.mdx
+++ b/docs/http/mutual-tls.mdx
@@ -163,7 +163,7 @@ Mutual TLS module.
 Run `curl` with the following command:
 
 ```bash
-curl --client client-cert.pem --key client-key.pem https://yourapp.ngrok.app
+curl --cert client-cert.pem --key client-key.pem https://yourapp.ngrok.app
 ```
 
 `curl` has a shortcut to pass a single file if the private key and certificate
diff --git a/docs/tls/mutual-tls.mdx b/docs/tls/mutual-tls.mdx
index c93b177ea..0d43f90b8 100644
--- a/docs/tls/mutual-tls.mdx
+++ b/docs/tls/mutual-tls.mdx
@@ -187,7 +187,7 @@ Mutual TLS module.
 Run `curl` with the following command:
 
 ```bash
-curl --client client-cert.pem --key client-key.pem https://yourapp.ngrok.app
+curl --cert client-cert.pem --key client-key.pem https://yourapp.ngrok.app
 ```
 
 `curl` has a shortcut to pass a single file if the private key and certificate