diff --git a/SurfFinishingData.cpp b/SurfFinishingData.cpp
index fac40bc..58707ee 100644
--- a/SurfFinishingData.cpp
+++ b/SurfFinishingData.cpp
@@ -391,7 +391,8 @@ SurfFinishingData::VerifySubType( int nVal) const
 {
    return ( nVal == SURFFIN_SUB_ZIGZAG  ||  nVal == SURFFIN_SUB_ONEWAY  ||
             nVal == SURFFIN_SUB_SPIRALIN  ||  nVal == SURFFIN_SUB_SPIRALOUT  ||
-            nVal == SURFFIN_SUB_Z_CONST  ||  nVal == SURFFIN_SUB_OPTIMAL) ;
+            nVal == SURFFIN_SUB_Z_CONST  ||  nVal == SURFFIN_SUB_OPTIMAL  ||
+            nVal == SURFFIN_SUB_PROJECT) ;
 }
 
 //----------------------------------------------------------------------------