diff --git a/lua/gitlab/reviewer/diffview.lua b/lua/gitlab/reviewer/diffview.lua
index 9f9ed82..d89aece 100644
--- a/lua/gitlab/reviewer/diffview.lua
+++ b/lua/gitlab/reviewer/diffview.lua
@@ -205,8 +205,6 @@ M.set_diagnostics = function(namespace, diagnostics, type, opts)
     vim.diagnostic.set(namespace, view.cur_layout.b.file.bufnr, diagnostics, opts)
   elseif type == "old" and view.cur_layout.a.file.bufnr then
     vim.diagnostic.set(namespace, view.cur_layout.a.file.bufnr, diagnostics, opts)
-  else
-    vim.notify("Unknown diagnostic type", vim.log.levels.ERROR)
   end
 end