diff --git a/usermods/usermod_v2_rotary_encoder_ui_ALT/usermod_v2_rotary_encoder_ui_ALT.h b/usermods/usermod_v2_rotary_encoder_ui_ALT/usermod_v2_rotary_encoder_ui_ALT.h
index b1674951..cdb4f04c 100644
--- a/usermods/usermod_v2_rotary_encoder_ui_ALT/usermod_v2_rotary_encoder_ui_ALT.h
+++ b/usermods/usermod_v2_rotary_encoder_ui_ALT/usermod_v2_rotary_encoder_ui_ALT.h
@@ -479,7 +479,8 @@ void RotaryEncoderUIUsermod::setup()
       return;
     } else {
       if (pinIRQ >= 0 && pinManager.allocatePin(pinIRQ, false, PinOwner::UM_RotaryEncoderUI)) {
-        attachInterrupt(pinIRQ, i2cReadingISR, CHANGE); // RISING, FALLING, CHANGE, ONLOW, ONHIGH
+        pinMode(pinIRQ, INPUT_PULLUP);
+        attachInterrupt(pinIRQ, i2cReadingISR, FALLING); // RISING, FALLING, CHANGE, ONLOW, ONHIGH
         DEBUG_PRINTLN(F("Interrupt attached."));
       } else {
         DEBUG_PRINTLN(F("Unable to allocate interrupt pin, disabling."));