diff --git a/EXeExecutor.h b/EXeExecutor.h
index 8f9326b..84f3be1 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -644,6 +644,7 @@ EXE_EXPORT bool ExeArcRadius( int nId, double* pdRad) ;
 EXE_EXPORT bool ExeArcAngCenter( int nId, double* pdAngDeg) ;
 EXE_EXPORT bool ExeArcDeltaN( int nId, double* pdDeltaN) ;
 EXE_EXPORT bool ExeArcNormVersor( int nId, int nRefId, Vector3d& vtNorm) ;
+EXE_EXPORT bool ExeCurveCompoLength( int nId, int nSimpCrv, double& dLen) ;
 EXE_EXPORT bool ExeCurveCompoCenter( int nId, int nSimpCrv, int nRefId, Point3d& ptCen) ;
 EXE_EXPORT bool ExeCurveCompoRadius( int nId, int nSimpCrv, double& dRad) ;
 EXE_EXPORT bool ExeCurveCompoAngCenter( int nId, int nSimpCrv, double& dAngCen) ;