2 files changed, 5 insertions, 3 deletions
diff --git a/sw/source/filter/ww8/docxattributeoutput.cxx b/sw/source/filter/ww8/docxattributeoutput.cxx
index d65d9dbd6f83..2b9fdedc9ba5 100644
--- a/sw/source/filter/ww8/docxattributeoutput.cxx
+++ b/sw/source/filter/ww8/docxattributeoutput.cxx
@@ -4488,10 +4488,9 @@ void DocxAttributeOutput::WritePostponedChart()
             FSEND );
 
         OString aRelId;
-        static sal_Int32 nChartCount = 0;
-        nChartCount++;
+        m_nChartCount++;
         uno::Reference< frame::XModel > xModel( xChartDoc, uno::UNO_QUERY );
-        aRelId = m_rExport.OutputChart( xModel, nChartCount, m_pSerializer );
+        aRelId = m_rExport.OutputChart( xModel, m_nChartCount, m_pSerializer );
 
         m_pSerializer->singleElementNS( XML_c, XML_chart,
             FSNS( XML_xmlns, XML_c ), "http://schemas.openxmlformats.org/drawingml/2006/chart",
@@ -8432,6 +8431,7 @@ DocxAttributeOutput::DocxAttributeOutput( DocxExport &rExport, FSHelperPtr pSeri
       m_startedHyperlink( false ),
       m_nHyperLinkCount(0),
       m_nFieldsInHyperlink( 0 ),
+      m_nChartCount(0),
       m_postponedChart( nullptr ),
       pendingPlaceholder( nullptr ),
       m_postitFieldsMaxId( 0 ),
diff --git a/sw/source/filter/ww8/docxattributeoutput.hxx b/sw/source/filter/ww8/docxattributeoutput.hxx
index 73abf8217fb0..d046ffb33cf9 100644
--- a/sw/source/filter/ww8/docxattributeoutput.hxx
+++ b/sw/source/filter/ww8/docxattributeoutput.hxx
@@ -862,6 +862,8 @@ private:
     std::unique_ptr< std::list<PostponedOLE> > m_pPostponedOLEs;
 
     std::vector<const SwOLENode*> m_aPostponedMaths;
+    /// count charts consistently for unit tests
+    unsigned int m_nChartCount;
     const SdrObject* m_postponedChart;
     Size m_postponedChartSize;
     std::vector<const SdrObject*> m_aPostponedFormControls;