diff --git a/src/core/renderbackend.cpp b/src/core/renderbackend.cpp
index d0cdb45380..3c08be1af0 100644
--- a/src/core/renderbackend.cpp
+++ b/src/core/renderbackend.cpp
@@ -147,11 +147,6 @@ std::chrono::nanoseconds OutputFrame::predictedRenderTime() const
     return m_predictedRenderTime;
 }
 
-RenderBackend::RenderBackend(QObject *parent)
-    : QObject(parent)
-{
-}
-
 OutputLayer *RenderBackend::cursorLayer(Output *output)
 {
     return nullptr;
diff --git a/src/core/renderbackend.h b/src/core/renderbackend.h
index b4bbe2f8ed..1dd38801de 100644
--- a/src/core/renderbackend.h
+++ b/src/core/renderbackend.h
@@ -119,8 +119,6 @@ class KWIN_EXPORT RenderBackend : public QObject
     Q_OBJECT
 
 public:
-    explicit RenderBackend(QObject *parent = nullptr);
-
     virtual CompositingType compositingType() const = 0;
     virtual OverlayWindow *overlayWindow() const;