diff --git a/plugins/AudioFileProcessor/AudioFileProcessorView.cpp b/plugins/AudioFileProcessor/AudioFileProcessorView.cpp
index 298e79c5ed1..b38767cd15c 100644
--- a/plugins/AudioFileProcessor/AudioFileProcessorView.cpp
+++ b/plugins/AudioFileProcessor/AudioFileProcessorView.cpp
@@ -210,6 +210,7 @@ void AudioFileProcessorView::dropEvent(QDropEvent* de)
 	}
 
 	m_waveView->updateSampleRange();
+	m_waveView->updateWaveform();
 	Engine::getSong()->setModified();
 	de->accept();
 }
@@ -263,6 +264,7 @@ void AudioFileProcessorView::openAudioFile()
 	castModel<AudioFileProcessor>()->setAudioFile(af);
 	Engine::getSong()->setModified();
 	m_waveView->updateSampleRange();
+	m_waveView->updateWaveform();
 }
 
 void AudioFileProcessorView::modelChanged()
diff --git a/plugins/AudioFileProcessor/AudioFileProcessorWaveView.cpp b/plugins/AudioFileProcessor/AudioFileProcessorWaveView.cpp
index a69efba726e..2ebcec8841c 100644
--- a/plugins/AudioFileProcessor/AudioFileProcessorWaveView.cpp
+++ b/plugins/AudioFileProcessor/AudioFileProcessorWaveView.cpp
@@ -49,7 +49,10 @@ void AudioFileProcessorWaveView::updateSampleRange()
 		setFrom(m_sample->startFrame() - marging);
 		setTo(m_sample->endFrame() + marging);
 	}
+}
 
+void AudioFileProcessorWaveView::updateWaveform()
+{
 	m_waveform.reset(m_sample->data(), m_sample->sampleSize());
 }
 
@@ -92,6 +95,7 @@ AudioFileProcessorWaveView::AudioFileProcessorWaveView(QWidget* parent, int w, i
 	configureKnobRelationsAndWaveViews();
 
 	updateSampleRange();
+	updateWaveform();
 
 	m_graph.fill(Qt::transparent);
 	update();
diff --git a/plugins/AudioFileProcessor/AudioFileProcessorWaveView.h b/plugins/AudioFileProcessor/AudioFileProcessorWaveView.h
index 7753d44dc03..c45e0d86876 100644
--- a/plugins/AudioFileProcessor/AudioFileProcessorWaveView.h
+++ b/plugins/AudioFileProcessor/AudioFileProcessorWaveView.h
@@ -155,6 +155,7 @@ public slots:
 
 
 	void updateSampleRange();
+	void updateWaveform();
 private:
 	void setTo(int to);
 	void setFrom(int from);