diff --git a/tests/test_form_pages.py b/tests/test_form_pages.py
index e428cb9c5..71c4aa1a2 100644
--- a/tests/test_form_pages.py
+++ b/tests/test_form_pages.py
@@ -2791,8 +2791,8 @@ def test_form_file_field_submit_wrong_mimetype(pub):
 def test_form_table_field_submit(pub, emails):
     formdef = create_formdef()
     formdef.fields = [fields.TableField(id='0', label='table', type='table',
-        rows=[u'à'.encode(pub.site_charset), 'b'],
-        columns=['c', 'd', u'e'.encode(pub.site_charset)], required=False)]
+        rows=[force_str(u'à'), 'b'],
+        columns=['c', 'd', force_str(u'e')], required=False)]
     formdef.store()
     formdef.data_class().wipe()