diff --git a/test/functional/lua/diagnostic_spec.lua b/test/functional/lua/diagnostic_spec.lua
index 7b4d68c9cd..6b4ca5ac73 100644
--- a/test/functional/lua/diagnostic_spec.lua
+++ b/test/functional/lua/diagnostic_spec.lua
@@ -79,10 +79,6 @@ describe('vim.diagnostic', function()
     ]])
   end)
 
-  after_each(function()
-    clear()
-  end)
-
   it('creates highlight groups', function()
     command('runtime plugin/diagnostic.vim')
     eq({