diff --git a/app/widget/scope/waveform/waveform.cpp b/app/widget/scope/waveform/waveform.cpp
index caab7c9fb..2eac18fba 100644
--- a/app/widget/scope/waveform/waveform.cpp
+++ b/app/widget/scope/waveform/waveform.cpp
@@ -60,6 +60,7 @@ void WaveformScope::paintGL()
 
   pipeline_->bind();
   pipeline_->setUniformValue("ove_resolution", texture_->width(), texture_->height());
+  pipeline_->setUniformValue("ove_viewport", width(), height());
 
   // The general size of a pixel
   pipeline_->setUniformValue("threshold", 2.0f / static_cast<float>(height()));