diff --git a/vcl/source/opengl/OpenGLContext.cxx b/vcl/source/opengl/OpenGLContext.cxx
index 649269d5ca41..fb3bd72b65c6 100644
--- a/vcl/source/opengl/OpenGLContext.cxx
+++ b/vcl/source/opengl/OpenGLContext.cxx
@@ -601,7 +601,7 @@ bool OpenGLContext::initWindow()
     if( m_pChildWindow )
     {
         m_pChildWindow->SetMouseTransparent( true );
-        m_pChildWindow->SetParentClipMode( PARENTCLIPMODE_NOCLIP );
+        m_pChildWindow->SetParentClipMode(PARENTCLIPMODE_CLIP);
         m_pChildWindow->EnableEraseBackground( false );
         m_pChildWindow->SetControlForeground();
         m_pChildWindow->SetControlBackground();