Indenting of curly braces

I can't seem to get `php-mode` to indent curly braces correctly. For instance, if the intended result is:

``` php
if(expression)
{
statement;
}
```

... I always get:

``` php
if(expression)
{ // badly indented
statement;
} // badly indented
```

This with `c-default-style` set to `linux` and `c-basic-offset` to 2.

I've had a look in the `php-mode` group searching for any customizations that might affect brace indentation but didn't find any.

This can't be a bug: what am I missing?