diff --git a/Rotary_Trinkey/surfacedial_encoder_demo/surfacedial_encoder_demo.ino b/Rotary_Trinkey/surfacedial_encoder_demo/surfacedial_encoder_demo.ino
index cf58ce896..0fdb0caf3 100644
--- a/Rotary_Trinkey/surfacedial_encoder_demo/surfacedial_encoder_demo.ino
+++ b/Rotary_Trinkey/surfacedial_encoder_demo/surfacedial_encoder_demo.ino
@@ -47,7 +47,7 @@ void loop() {
   int curr_rotary = encoder.getPosition();
   RotaryEncoder::Direction direction = encoder.getDirection();
   // read switch
-  bool curr_button = !digitalRead(PIN_ENCODER_SWITCH);
+  bool curr_button = digitalRead(PIN_ENCODER_SWITCH);
   
   if (direction != RotaryEncoder::Direction::NOROTATION) {
     Serial.print("Encoder value: ");
diff --git a/Rotary_Trinkey/volumemute_encoder_demo/volumemute_encoder_demo.ino b/Rotary_Trinkey/volumemute_encoder_demo/volumemute_encoder_demo.ino
index 459f91e0a..48fbb6d14 100644
--- a/Rotary_Trinkey/volumemute_encoder_demo/volumemute_encoder_demo.ino
+++ b/Rotary_Trinkey/volumemute_encoder_demo/volumemute_encoder_demo.ino
@@ -47,7 +47,7 @@ void loop() {
   int curr_rotary = encoder.getPosition();
   RotaryEncoder::Direction direction = encoder.getDirection();
   // read switch
-  bool curr_button = !digitalRead(PIN_ENCODER_SWITCH);
+  bool curr_button = digitalRead(PIN_ENCODER_SWITCH);
   
   if (direction != RotaryEncoder::Direction::NOROTATION) {
     Serial.print("Encoder value: ");