How can I turn off a led when releasing a button?

Projects Programming
3 
void loop(){
if (digitalRead(button1) == LOW){
digitalWrite (ledPin,  HIGH);
}
if (digitalRead(button2) == LOW){
digitalWrite (ledPin, LOW);
}

}

In setup():
pinMode (buttonX, INPUT_PULLUP);

Wire the button so the pin connects to Gnd when pressed.