diff --git a/src/kernel/qgfxw100_qws.cpp b/src/kernel/qgfxw100_qws.cpp
index cbc42d6..b5dfe31 100644
--- a/src/kernel/qgfxw100_qws.cpp
+++ b/src/kernel/qgfxw100_qws.cpp
@@ -1250,7 +1250,7 @@ void QGfxW100< depth, type>::dDrawPolyline( const QPointArray &a,
     points[ npoints ] = points[ npoints - 1 ];
 
 
-    GFX_START( clipbounds );
+    GFX_START( this->clipbounds );
     driver.setFrgColour( this->cpen.color().rgb() );
     driver.setRopOperation( ROP3_PATCOPY );
     for ( int loopc = 0; loopc < this->ncliprect; loopc++ ) {
@@ -1341,7 +1341,7 @@ void QGfxW100< depth, type>::dDrawPoint( int x, int y )
     point.XCoord = x + this->xoffs;
     point.YCoord = y + this->yoffs;
 
-    GFX_START( clipbounds );
+    GFX_START( this->clipbounds );
     driver.setFrgColour( this->cpen.color().rgb() );
     driver.setRopOperation( ROP3_PATCOPY );
     for ( int loopc = 0; loopc < this->ncliprect; loopc++ ) {
@@ -1413,7 +1413,7 @@ void QGfxW100< depth, type>::dDrawPoints( const QPointArray &a,
         points[i].YCoord = a[i+index].y() + this->yoffs;
     }
 
-    GFX_START( clipbounds );
+    GFX_START( this->clipbounds );
     driver.setFrgColour( this->cpen.color().rgb() );
     driver.setRopOperation( ROP3_PATCOPY );
     for ( int loopc = 0; loopc < this->ncliprect; loopc++ ) {