Qt: Is emitting signals in lamdas ok or it is bad style (and will it cause problems)

Let's say I have Widget containing a Button and a Spinbox. When the Button is clicked I wish to emit the value of the Spinbox.

I see two possible ways to do this:
Either I can create a private member function

//...
connect(m_Button, &QPushButton::clicked, this, &SomeWidget::emitSpinboxValue);
//...

SomeWidget::emitSpinboxValue() {
    emit spinboxValueChanged(m_Spinbox->value());
}

Or I can directly do that in a lambda:

//...
connect(m_Button, &QPushButton::clicked, [this]() { emit spinboxValueChanged(m_Spinbox->value()) });
//...

The lambda way looks neater (since I do not need to create a rather empty member function), but on the other hand seeing that emit in the lambda gives me a bad feeling in my gut.

So, is emitting signals in a lambda ok (and my gut oversensitive), or is it bad style (or do I even set myself up for some unexpected trouble in the future)