# rustup target > Modify a toolchain's supported targets. > Without the `--toolchain` option `rustup` will use the default toolchain. See `rustup help toolchain` for more information about toolchains. > More information: . - Add a target to a toolchain: `rustup target add --toolchain {{toolchain}} {{target}}` - Remove a target from a toolchain: `rustup target remove --toolchain {{toolchain}} {{target}}` - List available and installed targets for a toolchain: `rustup target list --toolchain {{toolchain}}` - List installed targets for a toolchain: `rustup target list --toolchain {{toolchain}} --installed`