diff --git a/vim/en.utf-8.add b/vim/en.utf-8.add
index 0ef16fb..b9394b0 100644
--- a/vim/en.utf-8.add
+++ b/vim/en.utf-8.add
@@ -79,3 +79,4 @@ BCAT
 ACBT
 Haitao
 tex
+NFA
diff --git a/vim/en.utf-8.add.spl b/vim/en.utf-8.add.spl
new file mode 100644
index 0000000..f3a305c
Binary files /dev/null and b/vim/en.utf-8.add.spl differ