diff --git a/tests/test_form_pages.py b/tests/test_form_pages.py
index 3958e666a..6a31c1ef4 100644
--- a/tests/test_form_pages.py
+++ b/tests/test_form_pages.py
@@ -5182,6 +5182,7 @@ remote.example.net = 1234
         assert formdef.data_class().select()[0].data['0_structured'] == data['data'][0]
 
     # check with optional field
+    formdef.data_class().wipe()
     formdef.fields[0].required = False
     formdef.store()