diff --git a/src/plugins/screencast/outputscreencastsource.cpp b/src/plugins/screencast/outputscreencastsource.cpp
index c0a56b7524..806e529701 100644
--- a/src/plugins/screencast/outputscreencastsource.cpp
+++ b/src/plugins/screencast/outputscreencastsource.cpp
@@ -53,7 +53,7 @@ void OutputScreenCastSource::render(GLFramebuffer *target)
 
     ShaderBinder shaderBinder(ShaderTrait::MapTexture);
     QMatrix4x4 projectionMatrix;
-    projectionMatrix.ortho(geometry);
+    projectionMatrix.ortho(scaledRect(geometry, m_output->scale()));
     shaderBinder.shader()->setUniform(GLShader::ModelViewProjectionMatrix, projectionMatrix);
 
     GLFramebuffer::pushFramebuffer(target);
diff --git a/src/plugins/screencast/regionscreencastsource.cpp b/src/plugins/screencast/regionscreencastsource.cpp
index fc5fe34461..cd4bd92a6a 100644
--- a/src/plugins/screencast/regionscreencastsource.cpp
+++ b/src/plugins/screencast/regionscreencastsource.cpp
@@ -58,7 +58,7 @@ void RegionScreenCastSource::updateOutput(Output *output)
         projectionMatrix.ortho(m_region);
 
         const QPoint pos = outputGeometry.topLeft();
-        projectionMatrix.translate(pos.x(), pos.y());
+        projectionMatrix.translate(pos.x() * outputScale, pos.y() * outputScale);
 
         shaderBinder.shader()->setUniform(GLShader::ModelViewProjectionMatrix, projectionMatrix);
 
diff --git a/src/plugins/screencast/windowscreencastsource.cpp b/src/plugins/screencast/windowscreencastsource.cpp
index 080ad57a4d..5c85b4e911 100644
--- a/src/plugins/screencast/windowscreencastsource.cpp
+++ b/src/plugins/screencast/windowscreencastsource.cpp
@@ -50,7 +50,9 @@ void WindowScreenCastSource::render(QImage *image)
 
 void WindowScreenCastSource::render(GLFramebuffer *target)
 {
-    const QRectF geometry = m_window->clientGeometry();
+    auto targetScale = Compositor::self()->scene()->renderTargetScale();
+
+    const QRectF geometry = scaledRect(m_window->clientGeometry(), targetScale);
     QMatrix4x4 projectionMatrix;
     projectionMatrix.ortho(geometry.x(), geometry.x() + geometry.width(),
                            geometry.y(), geometry.y() + geometry.height(), -1, 1);