diff --git a/qml/TunerScreen.qml b/qml/TunerScreen.qml
index c4261f9..32c7e3e 100644
--- a/qml/TunerScreen.qml
+++ b/qml/TunerScreen.qml
@@ -147,7 +147,7 @@ Item {
 			width: is_portrait ? meter.width / 2 : parent.width / 6
 			height: parent.toise_h
 
-			index: tuner.octave
+			index: tuner.octave - 1
 		}
 	}