diff --git a/src/gui/opengl/qopenglpaintengine.cpp b/src/gui/opengl/qopenglpaintengine.cpp
index 47394999c66..6c796776c02 100644
--- a/src/gui/opengl/qopenglpaintengine.cpp
+++ b/src/gui/opengl/qopenglpaintengine.cpp
@@ -1330,6 +1330,7 @@ void QOpenGL2PaintEngineExPrivate::drawVertexArrays(const float *data, int *stop
 QOpenGL2PaintEngineEx::QOpenGL2PaintEngineEx()
     : QPaintEngineEx(*(new QOpenGL2PaintEngineExPrivate(this)))
 {
+    gccaps &= ~QPaintEngine::RasterOpModes;
 }
 
 QOpenGL2PaintEngineEx::~QOpenGL2PaintEngineEx()