diff --git a/EXeExecutor.h b/EXeExecutor.h
index 202b303..44a682b 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -407,7 +407,7 @@ EXE_EXPORT int  ExeCreateSurfBezierTria2D( int nParentId, int nSurfBzId, int nTe
 EXE_EXPORT int  ExeCreateSurfBzByFlatContour( int nParentId, int nCrvId, double dLinTol) ;
 EXE_EXPORT int  ExeCreateSurfBzByRegion( int nParentId, const INTVECTOR& vCrvId, double dLinTol) ;
 EXE_EXPORT int  ExeCreateSurfBzByExtrusion( int nParentId, int nCrvId, const Vector3d& vtExtr, bool bCapEnds,
-                                            double dLinTol, int nRefType) ;
+                                            double dLinTol, int nRefType, int* pnCount = nullptr) ;
 EXE_EXPORT int  ExeCreateSurfBzByRegionExtrusion( int nParentId, const INTVECTOR& vCrvIds, const Vector3d& vtExtr, bool bCapEnds,
                                                   double dLinTol, int nRefType) ;
 EXE_EXPORT int  ExeCreateSurfBzByScrewing( int nParentId, int nCrvId,