diff --git a/src/gui/opengl/qopenglcustomshaderstage.cpp b/src/gui/opengl/qopenglcustomshaderstage.cpp
index e0d131e64dc..e5504e6195e 100644
--- a/src/gui/opengl/qopenglcustomshaderstage.cpp
+++ b/src/gui/opengl/qopenglcustomshaderstage.cpp
@@ -63,6 +63,7 @@ QOpenGLCustomShaderStage::~QOpenGLCustomShaderStage()
         d->m_manager->removeCustomStage();
         d->m_manager->sharedShaders->cleanupCustomStage(this);
     }
+    delete d_ptr;
 }
 
 void QOpenGLCustomShaderStage::setUniformsDirty()
diff --git a/src/gui/opengl/qopenglcustomshaderstage_p.h b/src/gui/opengl/qopenglcustomshaderstage_p.h
index 78c414d3169..9b3c9fbce10 100644
--- a/src/gui/opengl/qopenglcustomshaderstage_p.h
+++ b/src/gui/opengl/qopenglcustomshaderstage_p.h
@@ -46,6 +46,7 @@
 //
 
 #include <QOpenGLShaderProgram>
+#include <QtGlobal>
 
 QT_BEGIN_NAMESPACE
 
@@ -72,6 +73,8 @@ protected:
 
 private:
     QOpenGLCustomShaderStagePrivate* d_ptr;
+
+    Q_DISABLE_COPY(QOpenGLCustomShaderStage)
 };