diff --git a/runtime/ftplugin/reva.vim b/runtime/ftplugin/reva.vim
index 05c8bc325..cf90ff82c 100644
--- a/runtime/ftplugin/reva.vim
+++ b/runtime/ftplugin/reva.vim
@@ -23,3 +23,5 @@ setlocal com=s1:/*,mb:*,ex:*/,:\|,:\\
setlocal fo=tcrqol
setlocal matchpairs+=\::;
setlocal iskeyword=!,@,33-35,%,$,38-64,A-Z,91-96,a-z,123-126,128-255
+
+let b:undo_ftplugin = "setlocal sts< sw< com< fo< mps< isk<"