diff --git a/EInAPI.h b/EInAPI.h
index fb795e1..a45d76d 100644
--- a/EInAPI.h
+++ b/EInAPI.h
@@ -117,7 +117,7 @@ EIN_EXPORT BOOL __stdcall EgtImportDxf( const wchar_t* wsFilePath, double dScale
 EIN_EXPORT BOOL __stdcall EgtImportPnt( const wchar_t* wsFilePath, int nFlag) ;
 EIN_EXPORT BOOL __stdcall EgtImportStl( const wchar_t* wsFilePath, double dScaleFactor) ;
 EIN_EXPORT BOOL __stdcall EgtImportOff( const wchar_t* wsFilePath, double dScaleFactor) ;
-EIN_EXPORT BOOL __stdcall EgtImport3MF( const wchar_t* wsFilePath) ;
+EIN_EXPORT BOOL __stdcall EgtImport3MF( const wchar_t* wsFilePath, int nFlag) ;
 EIN_EXPORT BOOL __stdcall EgtImport3dm( const wchar_t* wsFilePath) ;
 EIN_EXPORT BOOL __stdcall EgtAdvancedImportIsEnabled( void) ;
 EIN_EXPORT BOOL __stdcall EgtAdvancedImport( const wchar_t* wsFilePath, double dLinToler, int nFlag) ;