# Change tuple (mutable)


* mut

* Use the `mut` keyword to make the values of the tuple mutable.
* We still cannot add elements to the tuple. It's shape and the types of the fields are fixed.
* Assign a new value to one of the elements using the dot-notation.

{% embed include file="src/examples/tuples/change-tuple/src/main.rs" %}
{% embed include file="src/examples/tuples/change-tuple/out.out" %}


