diff --git a/python/gui/auto_generated/qgsmaptoolcapture.sip.in b/python/gui/auto_generated/qgsmaptoolcapture.sip.in
index 62396fe57d7..c2d9899e5de 100644
--- a/python/gui/auto_generated/qgsmaptoolcapture.sip.in
+++ b/python/gui/auto_generated/qgsmaptoolcapture.sip.in
@@ -346,14 +346,14 @@ geometryCaptured is called just before
 
 .. versionadded:: 3.24
 %End
-    virtual void lineCaptured( QgsCurve *line );
+    virtual void lineCaptured( const QgsCurve *line );
 %Docstring
 Called when a line is captured
 geometryCaptured is called just before
 
 .. versionadded:: 3.24
 %End
-    virtual void polygonCaptured( QgsCurvePolygon *polygon );
+    virtual void polygonCaptured( const QgsCurvePolygon *polygon );
 %Docstring
 Called when a polygon is captured
 geometryCaptured is called just before
diff --git a/src/app/qgsmaptooladdpart.cpp b/src/app/qgsmaptooladdpart.cpp
index b3ae7a955f9..2f1372e73db 100644
--- a/src/app/qgsmaptooladdpart.cpp
+++ b/src/app/qgsmaptooladdpart.cpp
@@ -86,7 +86,7 @@ void QgsMapToolAddPart::pointCaptured( const QgsPoint &point )
   finalizeEditCommand( layer, errorCode );
 }
 
-void QgsMapToolAddPart::lineCaptured( QgsCurve *line )
+void QgsMapToolAddPart::lineCaptured( const QgsCurve *line )
 {
   QgsVectorLayer *layer = getLayerAndCheckSelection();
   if ( !layer )
@@ -96,7 +96,7 @@ void QgsMapToolAddPart::lineCaptured( QgsCurve *line )
   finalizeEditCommand( layer, errorCode );
 }
 
-void QgsMapToolAddPart::polygonCaptured( QgsCurvePolygon *polygon )
+void QgsMapToolAddPart::polygonCaptured( const QgsCurvePolygon *polygon )
 {
   QgsVectorLayer *layer = getLayerAndCheckSelection();
   if ( !layer )
diff --git a/src/app/qgsmaptooladdpart.h b/src/app/qgsmaptooladdpart.h
index 31de9bb9a32..b2175069d97 100644
--- a/src/app/qgsmaptooladdpart.h
+++ b/src/app/qgsmaptooladdpart.h
@@ -42,8 +42,8 @@ class APP_EXPORT QgsMapToolAddPart : public QgsMapToolCapture
     QgsVectorLayer *getLayerAndCheckSelection();
 
     void pointCaptured( const QgsPoint &point ) override;
-    void lineCaptured( QgsCurve *line ) override;
-    void polygonCaptured( QgsCurvePolygon *polygon ) override;
+    void lineCaptured( const QgsCurve *line ) override;
+    void polygonCaptured( const QgsCurvePolygon *polygon ) override;
 
     void finalizeEditCommand( QgsVectorLayer *layer, Qgis::GeometryOperationResult errorCode );
 };
diff --git a/src/gui/qgsmaptoolcapture.h b/src/gui/qgsmaptoolcapture.h
index 0c85756bf0d..46f3eb31c10 100644
--- a/src/gui/qgsmaptoolcapture.h
+++ b/src/gui/qgsmaptoolcapture.h
@@ -357,14 +357,14 @@ class GUI_EXPORT QgsMapToolCapture : public QgsMapToolAdvancedDigitizing
      * geometryCaptured is called just before
      * \since QGIS 3.24
      */
-    virtual void lineCaptured( QgsCurve *line ) {Q_UNUSED( line )} SIP_FORCE
+    virtual void lineCaptured( const QgsCurve *line ) {Q_UNUSED( line )} SIP_FORCE
 
     /**
      * Called when a polygon is captured
      * geometryCaptured is called just before
      * \since QGIS 3.24
      */
-    virtual void polygonCaptured( QgsCurvePolygon *polygon ) {Q_UNUSED( polygon )} SIP_FORCE
+    virtual void polygonCaptured( const QgsCurvePolygon *polygon ) {Q_UNUSED( polygon )} SIP_FORCE
 
     //! whether tracing has been requested by the user
     bool tracingEnabled();