diff --git a/plugins/triple_oscillator/triple_oscillator.cpp b/plugins/triple_oscillator/triple_oscillator.cpp
index d45ca41b9..c5e408c96 100644
--- a/plugins/triple_oscillator/triple_oscillator.cpp
+++ b/plugins/triple_oscillator/triple_oscillator.cpp
@@ -78,10 +78,10 @@ oscillatorObject::oscillatorObject( model * _parent, track * _track ) :
 	m_fineRightModel( 0.0f, -100.0f, 100.0f, 1.0f, this ),
 	m_phaseOffsetModel( 0.0f, 0.0f, 360.0f, 1.0f, this ),
 	m_stereoPhaseDetuningModel( 0.0f, 0.0f, 360.0f, 1.0f, this ),
-	m_waveShapeModel( oscillator::SineWave, 0, oscillator::NumWaveShapes,
+	m_waveShapeModel( oscillator::SineWave, 0, oscillator::NumWaveShapes-1,
 								1, this ),
 	m_modulationAlgoModel( oscillator::SignalMix, 0,
-				oscillator::NumModulationAlgos, 1, this ),
+				oscillator::NumModulationAlgos-1, 1, this ),
 	m_sampleBuffer( new sampleBuffer ),
 	m_volumeLeft( 0.0f ),
 	m_volumeRight( 0.0f ),