diff --git a/EXeExecutor.h b/EXeExecutor.h
index e29ab4a..98e78ca 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -730,6 +730,7 @@ EXE_EXPORT bool ExeCurveIsARectangle( int nId, Point3d& ptP, Vector3d& vtL1, Vec
 EXE_EXPORT bool ExeCurveIsATrapezoid( int nId, Point3d& ptP, Vector3d& vtB1, Vector3d& vtL1, Vector3d& vtB2, double dToler = EPS_SMALL) ;
 EXE_EXPORT bool ExeCurveAreaXY( int nId, double& dArea) ;
 EXE_EXPORT bool ExeCurveArea( int nId, Plane3d& Plane, double& dArea) ;
+EXE_EXPORT bool ExeCurveMaxOffset( int nId, double& dMaxOffset) ;
 EXE_EXPORT bool ExeCurveNearestExtremityToPoint( int nId, const Point3d& ptP, bool& bStart) ;
 EXE_EXPORT bool ExeCurveExtrusion( int nId, int nRefId, Vector3d& vtExtr) ;
 EXE_EXPORT bool ExeCurveThickness( int nId, double* pdThick) ;