diff --git a/MockBand.ino b/MockBand.ino
index 85f3131..413ba05 100644
--- a/MockBand.ino
+++ b/MockBand.ino
@@ -132,7 +132,7 @@ void loop() {
     buttonState.buttons = (vbuttons & 0b1100111111);     // +-..!OYRGB
 #ifdef GUITAR
     buttonState.buttons |= (vbuttons >> 10) & 0b11111;   // Solo keys
-    bitWrite(buttonState.buttons,  6, vbuttons & (0b11111 << 10));  // Solo modifier
+    bitWrite(buttonState.buttons,  6, (vbuttons >> 10) & 0b11111);  // Solo modifier
 
     if (bitRead(vbuttons, 6)) {
       buttonState.hatAndConstant = 0; // up