diff --git a/test/functional/options/modified_spec.lua b/test/functional/options/modified_spec.lua
new file mode 100644
index 0000000000..4fb80c255d
--- /dev/null
+++ b/test/functional/options/modified_spec.lua
@@ -0,0 +1,18 @@
+local helpers = require('test.functional.helpers')(after_each)
+local clear = helpers.clear
+local eq = helpers.eq
+local api = helpers.api
+
+describe("'modified'", function()
+  before_each(function()
+    clear()
+  end)
+
+  it("can be unset after changing 'fileformat'", function()
+    for _, ff in ipairs({ 'unix', 'dos', 'mac' }) do
+      api.nvim_set_option_value('fileformat', ff, {})
+      api.nvim_set_option_value('modified', false, {})
+      eq(false, api.nvim_get_option_value('modified', {}), 'fileformat=' .. ff)
+    end
+  end)
+end)