diff --git a/EXeExecutor.h b/EXeExecutor.h
index d5cc75b..678938d 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -813,7 +813,7 @@ EXE_EXPORT int  ExeSurfFrGetZigZagInfill( int nId, int nDestGrpId, double dStep,
 EXE_EXPORT int  ExeSurfTmVertexCount( int nId) ;
 EXE_EXPORT int  ExeSurfTmFacetCount( int nId) ;
 EXE_EXPORT int  ExeSurfTmPartCount( int nId) ;
-EXE_EXPOR  bool ExeSurfTmGetPartAndShellFromFacet( int nSurfTm, int nFacet, int& nPart, int& nShell) const = 0 ;
+EXE_EXPORT bool ExeSurfTmGetPartAndShellFromFacet( int nSurfTm, int nFacet, int& nPart, int& nShell) const = 0 ;
 EXE_EXPORT bool ExeSurfTmGetVertex( int nId, int nVert, int nRefId, Point3d& ptVert) ;
 EXE_EXPORT bool ExeSurfTmGetNearestVertex( int nId, const Point3d& ptNear, int nRefId, int& nVert, Point3d& ptVert) ;
 EXE_EXPORT bool ExeSurfTmTriangleNormVersor( int nId, int nTria, int nRefId, Vector3d& vtNorm) ;