QObject::connect and template causes issue

I would like to have a proxy for QObject::connect in a base class. The goal is to store all the QMetaObject::Connection returned by connect in a vector.

class MyBaseClass : public QObject {
    Q_OBJECT;

    template <typename... Args>
    void addConnection(Args... args) {
        auto c = this->connect(args...);
        if (c) {
            connections.push_back(c);
        }
    }

The issue is that the connection does not work anymore. When I emit a signal from a class that inherits MyBaseClass, it does nothing. For example, this does work :

connect(this, &ClassThatInheritsBaseClass::valueChanged, [this](int v) {
    qDebug() << QString::number(value);
}

But this does not work :

addConnection(this, &ClassThatInheritsBaseClass::valueChanged, [this](int v) {
    qDebug() << QString::number(value);
}

Could someone explain me why it does not work ? And how to make it work ?