diff --git a/generators/dvi/generator_dvi.cpp b/generators/dvi/generator_dvi.cpp
index 5ff622cbf..65b4e2e08 100644
--- a/generators/dvi/generator_dvi.cpp
+++ b/generators/dvi/generator_dvi.cpp
@@ -143,13 +143,13 @@ bool DviGenerator::doCloseDocument()
 }
 
 void DviGenerator::fillViewportFromAnchor( Okular::DocumentViewport &vp,
-                                           const Anchor &anch, const Okular::Page *page )
+                                           const Anchor &anch, const Okular::Page *page ) const
 {
     fillViewportFromAnchor( vp, anch, page->width(), page->height() );
 }
 
 void DviGenerator::fillViewportFromAnchor( Okular::DocumentViewport &vp,
-                                           const Anchor &anch, int pW, int pH ) 
+                                           const Anchor &anch, int pW, int pH ) const
 {
     vp.pageNumber = anch.page - 1;
 
@@ -584,7 +584,7 @@ QVariant DviGenerator::metaData( const QString & key, const QVariant & option )
             const Okular::Page *page = document()->page( anchor.page - 1 );
             Q_ASSERT_X( page, "DviGenerator::metaData()", "NULL page as result of valid Anchor" );
             Okular::DocumentViewport viewport;
-            const_cast< DviGenerator * >( this )->fillViewportFromAnchor( viewport, anchor, page );
+            fillViewportFromAnchor( viewport, anchor, page );
             if ( viewport.isValid() )
             {
                 return viewport.toString();
diff --git a/generators/dvi/generator_dvi.h b/generators/dvi/generator_dvi.h
index 72f91ce53..e8eaa40c4 100644
--- a/generators/dvi/generator_dvi.h
+++ b/generators/dvi/generator_dvi.h
@@ -61,9 +61,9 @@ class DviGenerator : public Okular::Generator
         void loadPages( QVector< Okular::Page * > & pagesVector );
         Okular::TextPage *extractTextFromPage( dviPageInfo *pageInfo );
         void fillViewportFromAnchor( Okular::DocumentViewport &vp, const Anchor &anch, 
-                                     int pW, int pH ); 
+                                     int pW, int pH ) const; 
         void fillViewportFromAnchor( Okular::DocumentViewport &vp, const Anchor &anch,
-                                     const Okular::Page *page );
+                                     const Okular::Page *page ) const;
         QLinkedList<Okular::ObjectRect*> generateDviLinks( const dviPageInfo *pageInfo );
 };