diff --git a/usermods/usermod_v2_rotary_encoder_ui/usermod_v2_rotary_encoder_ui.h b/usermods/usermod_v2_rotary_encoder_ui/usermod_v2_rotary_encoder_ui.h
index 5196f9b9..1e85c518 100644
--- a/usermods/usermod_v2_rotary_encoder_ui/usermod_v2_rotary_encoder_ui.h
+++ b/usermods/usermod_v2_rotary_encoder_ui/usermod_v2_rotary_encoder_ui.h
@@ -178,7 +178,7 @@ public:
 
     if (currentTime >= (loopTime + 2)) // 2ms since last check of encoder = 500Hz
     {
-      button_state = digitalRead(pinC);
+      if (pinC >= 0) button_state = digitalRead(pinC);
       if (prev_button_state != button_state)
       {
         if (button_state == LOW)
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 f7ee924f..b25f1224 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
@@ -356,7 +356,7 @@ public:
       loopTime = currentTime; // Updates loopTime
 
       bool buttonPressed = false;
-      if (pinC > 0) buttonPressed = !digitalRead(pinC); //0=pressed, 1=released
+      if (pinC >= 0) buttonPressed = !digitalRead(pinC); //0=pressed, 1=released
       if (buttonPressed) {
         if (!buttonPressedBefore) buttonPressedTime = currentTime;
         buttonPressedBefore = true;