diff --git a/plugin/diffs.lua b/plugin/diffs.lua
index 2b785ef..cb2e9da 100644
--- a/plugin/diffs.lua
+++ b/plugin/diffs.lua
@@ -43,7 +43,8 @@ vim.api.nvim_create_autocmd('FileType', {
   callback = function(args)
     local diffs = require('diffs')
     if args.match == 'git' then
-      local is_fugitive = diffs.get_fugitive_config() and diffs.is_fugitive_buffer(args.buf)
+      local is_fugitive = diffs.get_fugitive_config()
+        and (diffs.is_fugitive_buffer(args.buf) or vim.b[args.buf].git_dir ~= nil)
       local is_committia = diffs.get_committia_config()
         and vim.api.nvim_buf_get_name(args.buf):match('__committia_diff__$')
       if not is_fugitive and not is_committia then