diff --git a/python/PyQt6/core/auto_additions/qgsplot.py b/python/PyQt6/core/auto_additions/qgsplot.py
index b230d3f6bac..71d5a1b9b60 100644
--- a/python/PyQt6/core/auto_additions/qgsplot.py
+++ b/python/PyQt6/core/auto_additions/qgsplot.py
@@ -9,7 +9,7 @@ try:
 except (NameError, AttributeError):
     pass
 try:
-    QgsPlot.__virtual_methods__ = ['writeXml', 'readXml']
+    QgsPlot.__virtual_methods__ = ['type', 'writeXml', 'readXml']
     QgsPlot.__group__ = ['plot']
 except (NameError, AttributeError):
     pass
diff --git a/python/PyQt6/core/auto_generated/plot/qgschart.sip.in b/python/PyQt6/core/auto_generated/plot/qgschart.sip.in
index d8357668d0d..64c52d772f2 100644
--- a/python/PyQt6/core/auto_generated/plot/qgschart.sip.in
+++ b/python/PyQt6/core/auto_generated/plot/qgschart.sip.in
@@ -29,9 +29,16 @@ A simple bar chart class.
     QgsBarChart();
     ~QgsBarChart();
 
+    virtual QString type() const;
+
     virtual void renderContent( QgsRenderContext &context, const QRectF &plotArea, const QgsPlotData &plotData = QgsPlotData() );
 
 
+    virtual bool writeXml( QDomElement &element, QDomDocument &document, const QgsReadWriteContext &context ) const;
+
+    virtual bool readXml( const QDomElement &element, const QgsReadWriteContext &context );
+
+
 };
 
 
@@ -55,9 +62,16 @@ A simple line chart class.
     QgsLineChart();
     ~QgsLineChart();
 
+    virtual QString type() const;
+
     virtual void renderContent( QgsRenderContext &context, const QRectF &plotArea, const QgsPlotData &plotData = QgsPlotData() );
 
 
+    virtual bool writeXml( QDomElement &element, QDomDocument &document, const QgsReadWriteContext &context ) const;
+
+    virtual bool readXml( const QDomElement &element, const QgsReadWriteContext &context );
+
+
 };
 
 /************************************************************************
diff --git a/python/PyQt6/core/auto_generated/plot/qgsplot.sip.in b/python/PyQt6/core/auto_generated/plot/qgsplot.sip.in
index 4621d6f5a88..b9ccce81eed 100644
--- a/python/PyQt6/core/auto_generated/plot/qgsplot.sip.in
+++ b/python/PyQt6/core/auto_generated/plot/qgsplot.sip.in
@@ -31,6 +31,8 @@ Base class for plot/chart/graphs.
 
     virtual ~QgsPlot();
 
+    virtual QString type() const;
+
     virtual bool writeXml( QDomElement &element, QDomDocument &document, const QgsReadWriteContext &context ) const;
 %Docstring
 Writes the plot's properties into an XML ``element``.
diff --git a/python/core/auto_additions/qgsplot.py b/python/core/auto_additions/qgsplot.py
index b230d3f6bac..71d5a1b9b60 100644
--- a/python/core/auto_additions/qgsplot.py
+++ b/python/core/auto_additions/qgsplot.py
@@ -9,7 +9,7 @@ try:
 except (NameError, AttributeError):
     pass
 try:
-    QgsPlot.__virtual_methods__ = ['writeXml', 'readXml']
+    QgsPlot.__virtual_methods__ = ['type', 'writeXml', 'readXml']
     QgsPlot.__group__ = ['plot']
 except (NameError, AttributeError):
     pass
diff --git a/python/core/auto_generated/plot/qgschart.sip.in b/python/core/auto_generated/plot/qgschart.sip.in
index d8357668d0d..64c52d772f2 100644
--- a/python/core/auto_generated/plot/qgschart.sip.in
+++ b/python/core/auto_generated/plot/qgschart.sip.in
@@ -29,9 +29,16 @@ A simple bar chart class.
     QgsBarChart();
     ~QgsBarChart();
 
+    virtual QString type() const;
+
     virtual void renderContent( QgsRenderContext &context, const QRectF &plotArea, const QgsPlotData &plotData = QgsPlotData() );
 
 
+    virtual bool writeXml( QDomElement &element, QDomDocument &document, const QgsReadWriteContext &context ) const;
+
+    virtual bool readXml( const QDomElement &element, const QgsReadWriteContext &context );
+
+
 };
 
 
@@ -55,9 +62,16 @@ A simple line chart class.
     QgsLineChart();
     ~QgsLineChart();
 
+    virtual QString type() const;
+
     virtual void renderContent( QgsRenderContext &context, const QRectF &plotArea, const QgsPlotData &plotData = QgsPlotData() );
 
 
+    virtual bool writeXml( QDomElement &element, QDomDocument &document, const QgsReadWriteContext &context ) const;
+
+    virtual bool readXml( const QDomElement &element, const QgsReadWriteContext &context );
+
+
 };
 
 /************************************************************************
diff --git a/python/core/auto_generated/plot/qgsplot.sip.in b/python/core/auto_generated/plot/qgsplot.sip.in
index 4621d6f5a88..b9ccce81eed 100644
--- a/python/core/auto_generated/plot/qgsplot.sip.in
+++ b/python/core/auto_generated/plot/qgsplot.sip.in
@@ -31,6 +31,8 @@ Base class for plot/chart/graphs.
 
     virtual ~QgsPlot();
 
+    virtual QString type() const;
+
     virtual bool writeXml( QDomElement &element, QDomDocument &document, const QgsReadWriteContext &context ) const;
 %Docstring
 Writes the plot's properties into an XML ``element``.
diff --git a/src/core/plot/qgschart.cpp b/src/core/plot/qgschart.cpp
index 3343cc496b0..fb92153e529 100644
--- a/src/core/plot/qgschart.cpp
+++ b/src/core/plot/qgschart.cpp
@@ -92,6 +92,18 @@ void QgsBarChart::renderContent( QgsRenderContext &context, const QRectF &plotAr
   context.painter()->restore();
 }
 
+bool QgsBarChart::writeXml( QDomElement &element, QDomDocument &document, const QgsReadWriteContext &context ) const
+{
+  Qgs2DXyPlot::writeXml( element, document, context );
+  return true;
+}
+
+bool QgsBarChart::readXml( const QDomElement &element, const QgsReadWriteContext &context )
+{
+  Qgs2DXyPlot::readXml( element, context );
+  return true;
+}
+
 void QgsLineChart::renderContent( QgsRenderContext &context, const QRectF &plotArea, const QgsPlotData &plotData )
 {
   const QList<QgsAbstractPlotSeries *> seriesList = plotData.series();
@@ -161,3 +173,15 @@ void QgsLineChart::renderContent( QgsRenderContext &context, const QRectF &plotA
 
   context.painter()->restore();
 }
+
+bool QgsLineChart::writeXml( QDomElement &element, QDomDocument &document, const QgsReadWriteContext &context ) const
+{
+  Qgs2DXyPlot::writeXml( element, document, context );
+  return true;
+}
+
+bool QgsLineChart::readXml( const QDomElement &element, const QgsReadWriteContext &context )
+{
+  Qgs2DXyPlot::readXml( element, context );
+  return true;
+}
diff --git a/src/core/plot/qgschart.h b/src/core/plot/qgschart.h
index 45480577f1e..22f5f24ba56 100644
--- a/src/core/plot/qgschart.h
+++ b/src/core/plot/qgschart.h
@@ -37,10 +37,14 @@ class CORE_EXPORT QgsBarChart : public Qgs2DXyPlot
     QgsBarChart() = default;
     ~QgsBarChart() = default;
 
+    QString type() const override { return QStringLiteral( "bar" ); }
+
     void renderContent( QgsRenderContext &context, const QRectF &plotArea, const QgsPlotData &plotData = QgsPlotData() ) override;
 
-  private:
+    bool writeXml( QDomElement &element, QDomDocument &document, const QgsReadWriteContext &context ) const override;
+    bool readXml( const QDomElement &element, const QgsReadWriteContext &context ) override;
 
+  private:
 
 };
 
@@ -60,8 +64,13 @@ class CORE_EXPORT QgsLineChart : public Qgs2DXyPlot
     QgsLineChart() = default;
     ~QgsLineChart() = default;
 
+    QString type() const override { return QStringLiteral( "line" ); }
+
     void renderContent( QgsRenderContext &context, const QRectF &plotArea, const QgsPlotData &plotData = QgsPlotData() ) override;
 
+    bool writeXml( QDomElement &element, QDomDocument &document, const QgsReadWriteContext &context ) const override;
+    bool readXml( const QDomElement &element, const QgsReadWriteContext &context ) override;
+
   private:
 
 
diff --git a/src/core/plot/qgsplot.cpp b/src/core/plot/qgsplot.cpp
index ee37e202a1b..389e2e7f147 100644
--- a/src/core/plot/qgsplot.cpp
+++ b/src/core/plot/qgsplot.cpp
@@ -29,8 +29,9 @@
 
 QgsPlot::~QgsPlot() = default;
 
-bool QgsPlot::writeXml( QDomElement &, QDomDocument &, const QgsReadWriteContext & ) const
+bool QgsPlot::writeXml( QDomElement &element, QDomDocument &, const QgsReadWriteContext & ) const
 {
+  element.setAttribute( QStringLiteral( "plotType" ), type() );
   return true;
 }
 
diff --git a/src/core/plot/qgsplot.h b/src/core/plot/qgsplot.h
index e3586607fcf..3d6d898e4a8 100644
--- a/src/core/plot/qgsplot.h
+++ b/src/core/plot/qgsplot.h
@@ -48,6 +48,8 @@ class CORE_EXPORT QgsPlot
 
     virtual ~QgsPlot();
 
+    virtual QString type() const { return QString(); }
+
     /**
      * Writes the plot's properties into an XML \a element.
      */