diff --git a/autoload/gitgutter/diff.vim b/autoload/gitgutter/diff.vim
index 56bcd9e..52d0725 100644
--- a/autoload/gitgutter/diff.vim
+++ b/autoload/gitgutter/diff.vim
@@ -82,7 +82,7 @@ function! gitgutter#diff#run_diff(realtime, use_external_grep)
   if a:realtime
     call delete(blob_file)
     call delete(buff_file)
-    execute 'keepalt silent bwipeout' buff_file
+    execute 'keepalt silent! bwipeout' buff_file
   endif
 
   if gitgutter#utility#shell_error()