1 files changed, 1 insertions, 1 deletions
diff --git a/oox/inc/drawingml/chart/typegroupconverter.hxx b/oox/inc/drawingml/chart/typegroupconverter.hxx
index 694d97fed960..c4fb0543f7ec 100644
--- a/oox/inc/drawingml/chart/typegroupconverter.hxx
+++ b/oox/inc/drawingml/chart/typegroupconverter.hxx
@@ -153,7 +153,7 @@ public:
 
     /** Sets the passed OOXML marker style at the passed property set. */
     void                convertMarker( PropertySet& rPropSet, sal_Int32 nOoxSymbol, sal_Int32 nOoxSize,
-            ModelRef< Shape > xShapeProps ) const;
+                                       const ModelRef< Shape >& xShapeProps ) const;
     /** Sets the passed OOXML line smoothing at the passed property set. */
     void                convertLineSmooth( PropertySet& rPropSet, bool bOoxSmooth ) const;
     /** Sets the passed OOXML bar 3D geometry at the passed property set. */