diff --git a/lua/marks/bookmark.lua b/lua/marks/bookmark.lua
index c23a843..0a62435 100644
--- a/lua/marks/bookmark.lua
+++ b/lua/marks/bookmark.lua
@@ -317,9 +317,11 @@ function Bookmarks:all_to_list(list_type)
   for group_nr, group in pairs(self.groups) do
     for bufnr, buffer_marks in pairs(group.marks) do
       for line, mark in pairs(buffer_marks) do
-      local text = a.nvim_buf_get_lines(bufnr, line-1, line, true)[1]
-        table.insert(items, { bufnr=bufnr, lnum=line, col=mark.col + 1,
+        if nvim_buf_is_loaded(bufnr) then
+          local text = a.nvim_buf_get_lines(bufnr, line-1, line, true)[1]
+          table.insert(items, { bufnr=bufnr, lnum=line, col=mark.col + 1,
             text="bookmark group "..group_nr..": "..text })
+        end
       end
     end
   end
diff --git a/lua/marks/init.lua b/lua/marks/init.lua
index 9c134c6..b547766 100644
--- a/lua/marks/init.lua
+++ b/lua/marks/init.lua
@@ -183,7 +183,7 @@ end
 local function setup_autocommands()
   vim.cmd [[augroup Marks_autocmds
     autocmd!
-    autocmd BufEnter * lua require'marks'.refresh(true)
+    autocmd BufReadPost * lua require'marks'.refresh(true)
     autocmd BufDelete * lua require'marks'._on_delete()
   augroup end]]
 end