hide curl progress output

diff --git a/src/doc/index.md b/src/doc/index.md
index 57e8e1f6891a1aac5fd87bf85794126ed0935ec6..1046141ebeb3ab16776c8c0d60734f8b60a2e29b 100644 (file)
--- a/src/doc/index.md
+++ b/src/doc/index.md
@@ -6,7 +6,7 @@ The easiest way to get Cargo is to get the Rust nightly build by using
 the `rustup` script:
 
 ```shell
-$ curl https://static.rust-lang.org/rustup.sh | sudo bash
+$ curl -sS https://static.rust-lang.org/rustup.sh | sudo bash
 ```
 
 This will get you the latest Rust nightly for your platform along with