diff --git a/plugin/securemodelines.vim b/plugin/securemodelines.vim
index e23429f..fae0807 100644
--- a/plugin/securemodelines.vim
+++ b/plugin/securemodelines.vim
@@ -142,6 +142,6 @@ endfun
 
 aug SecureModeLines
     au!
-    au BufRead,StdinReadPost * :call <SID>DoModelines()
+    au BufEnter * :call <SID>DoModelines()
 aug END