diff --git a/interface/src/Application.cpp b/interface/src/Application.cpp
index 145222cd3c..306ca2f4b9 100644
--- a/interface/src/Application.cpp
+++ b/interface/src/Application.cpp
@@ -3083,7 +3083,6 @@ void Application::renderRearViewMirror(const QRect& region, bool billboard) {
         // if not rendering the billboard, the region is in device independent coordinates; must convert to device
         QSize size = getTextureCache()->getFrameBufferSize();
         float ratio = QApplication::desktop()->windowHandle()->devicePixelRatio();
-        ratio = size.height() / (float)_glWidget->getDeviceHeight();
         int x = region.x() * ratio, y = region.y() * ratio, width = region.width() * ratio, height = region.height() * ratio;
         glViewport(x, size.height() - y - height, width, height);
         glScissor(x, size.height() - y - height, width, height);