diff --git a/product/Formulator/XMLToForm.py b/product/Formulator/XMLToForm.py
index 08d93030185891f7fe676fc346436c1b7d5cf162..d1479136e99297d4714313ddef107065813dd0a7 100644
--- a/product/Formulator/XMLToForm.py
+++ b/product/Formulator/XMLToForm.py
@@ -91,10 +91,6 @@ def XMLToForm(s, form, override_encoding=None):
                 else:
                     field.values[name] = encode(value.text, encoding)
 
-            # special hack for the DateTimeField
-            if field.meta_type=='DateTimeField':
-                field.on_value_input_style_changed(
-                    field.get_value('input_style'))
 
             # set tales
             tales = entry.first.tales