diff --git a/ASCOfficeDocxFile2/BinReader/ChartWriter.h b/ASCOfficeDocxFile2/BinReader/ChartWriter.h
index 2e7861d7d4..809dc2af6f 100644
--- a/ASCOfficeDocxFile2/BinReader/ChartWriter.h
+++ b/ASCOfficeDocxFile2/BinReader/ChartWriter.h
@@ -47,13 +47,11 @@ namespace Writers
 		};
 		std::vector<ChartElem*> m_aCharts;
         ContentTypesWriter&     m_oContentTypesWriter;
-		int nChartCount;
 	public:
         std::wstring m_sDir;
 	public:
         ChartWriter(std::wstring sDir, ContentTypesWriter& oContentTypesWriter):m_sDir(sDir),m_oContentTypesWriter(oContentTypesWriter)
 		{
-			nChartCount = 0;
 		}
 		~ChartWriter()
 		{
@@ -91,28 +89,18 @@ namespace Writers
 				}
 			}
 		}
-		void AddChart(std::wstring& content, std::wstring& sRelsName, std::wstring& sFileName, int& index)
+		void AddChart(std::wstring& content, std::wstring& sRelsName, std::wstring& sFileName, int index)
 		{
 			ChartElem* pChartElem = new ChartElem();
 			pChartElem->content = content;
-			pChartElem->index = nChartCount + 1;
-			nChartCount++;
+			pChartElem->index = index;
             pChartElem->filename = L"chart" + std::to_wstring(pChartElem->index) + L".xml";
 			
 			sRelsName = L"charts/" + pChartElem->filename;
 			sFileName = pChartElem->filename;
-			index = pChartElem->index;
 
 			m_aCharts.push_back(pChartElem);
 		}
-		int getChartCount()
-		{
-			return nChartCount;
-		}
-		void setChartCount(int val)
-		{
-			nChartCount = val;
-		}
 	};
 }
 #endif	// #ifndef CHART_WRITER
diff --git a/ASCOfficeDocxFile2/BinReader/Readers.h b/ASCOfficeDocxFile2/BinReader/Readers.h
index 0b0b9af997..6fdc498af7 100644
--- a/ASCOfficeDocxFile2/BinReader/Readers.h
+++ b/ASCOfficeDocxFile2/BinReader/Readers.h
@@ -6287,15 +6287,11 @@ public:
         std::wstring sDrawingProperty = oCDrawingProperty.Write();
         if(false == sDrawingProperty.empty())
 		{
-            m_oFileWriter.m_pDrawingConverter->SetDocumentChartsCount(m_oFileWriter.m_oChartWriter.getChartCount());
-
 			long nCurPos = m_oBufferedStream.GetPos();
             std::wstring sDrawingXml;
             m_oFileWriter.m_pDrawingConverter->SaveObjectEx(oCDrawingProperty.DataPos, oCDrawingProperty.DataLength, sDrawingProperty, XMLWRITER_DOC_TYPE_DOCX, sDrawingXml);
 			m_oBufferedStream.Seek(nCurPos);
 
-            m_oFileWriter.m_oChartWriter.setChartCount(m_oFileWriter.m_pDrawingConverter->GetDocumentChartsCount());
-
             if( false == sDrawingXml.empty())
 			{
                 GetRunStringWriter().WriteString(sDrawingXml);
@@ -6606,7 +6602,10 @@ public:
 				oBinaryChartReader.ReadCT_ChartSpace(length, &pChartSpace->m_oChartSpace);
 
 				//save xlsx
-				std::wstring sXlsxFilename = L"Microsoft_Excel_Worksheet" + std::to_wstring(m_oFileWriter.m_oChartWriter.getChartCount() + 1) + L".xlsx";
+				_INT32 nChartCount = m_oFileWriter.m_pDrawingConverter->GetDocumentChartsCount();
+				_INT32 nChartIndex = nChartCount + 1;
+				m_oFileWriter.m_pDrawingConverter->SetDocumentChartsCount(nChartCount + 1);
+				std::wstring sXlsxFilename = L"Microsoft_Excel_Worksheet" + std::to_wstring(nChartIndex) + L".xlsx";
 				std::wstring sXlsxPath = pathChartsWorksheetDir.GetPath() + FILE_SEPARATOR_STR + sXlsxFilename;
 				BinXlsxRW::CXlsxSerializer oXlsxSerializer;
 				oXlsxSerializer.writeChartXlsx(sXlsxPath, *pChartSpace);
@@ -6629,7 +6628,6 @@ public:
 			
 				std::wstring sFilename;
 				std::wstring sRelsName;
-				int nChartIndex;
                 std::wstring sContent = sw.GetData();
                 
 				m_oFileWriter.m_oChartWriter.AddChart(sContent, sRelsName, sFilename, nChartIndex);