diff --git a/variants/nrf52840/t-rex/variant.h b/variants/nrf52840/t-rex/variant.h
index 9ab0cadf8..4735e340d 100644
--- a/variants/nrf52840/t-rex/variant.h
+++ b/variants/nrf52840/t-rex/variant.h
@@ -59,6 +59,7 @@ extern "C" {
 #define PIN_BUTTON1 (26)
 #define BUTTON_ACTIVE_LOW 0
 #define BUTTON_ACTIVE_PULLUP 0
+#define BUTTON_SENSE_TYPE INPUT_SENSE_HIGH
 
 #define ADC_RESOLUTION 14