diff --git a/R/GAPIT.Numericalization.R b/R/GAPIT.Numericalization.R
index d43fcf4..fee8660 100644
--- a/R/GAPIT.Numericalization.R
+++ b/R/GAPIT.Numericalization.R
@@ -46,6 +46,7 @@ len=length(lev)
      lev=levels(as.factor(x))
      lev=setdiff(lev,"N")
      lev=setdiff(lev,"NN")
+     inter=inter[1]
      #print(lev)
      len=length(lev)
    }