diff --git a/src/common/graphcmn.cpp b/src/common/graphcmn.cpp
index f03d1f7dec..00c64e9ca0 100644
--- a/src/common/graphcmn.cpp
+++ b/src/common/graphcmn.cpp
@@ -835,6 +835,7 @@ void wxGraphicsContext::DrawLines( size_t n, const wxPoint2DDouble *points, wxPo
     path.MoveToPoint(points[0].m_x, points[0].m_y);
     for ( size_t i = 1; i < n; ++i)
         path.AddLineToPoint( points[i].m_x, points[i].m_y );
+    path.CloseSubpath();
     DrawPath( path , fillStyle);
 }