@@ -444,7 +444,7 @@ void get_command()
allow_when_stopped = true;
// Handle the USB timer
- if ((*cmd_start == 'G') && !IS_SD_PRINTING)
+ if ((*cmd_start == 'G') && !(IS_SD_PRINTING))
usb_timer.start();
if (allow_when_stopped == false && Stopped == true) {