# 0079: Invalid parameter in Alloc command

The first parameter in the `Alloc` [command](https://docs.sannybuilder.com/language/instructions/built-in-commands#alloc) is not a [global variable](https://docs.sannybuilder.com/language/data-types/variables#global-variables). This command only works with global variables.

**Possible solutions:** provide a global variable:

```
Alloc(10@, 10) // error
Alloc($var, 10) // OK
```