diff --git a/pillar/api/custom_field_validation.py b/pillar/api/custom_field_validation.py
index e86c7130..dc4a9a25 100644
--- a/pillar/api/custom_field_validation.py
+++ b/pillar/api/custom_field_validation.py
@@ -105,6 +105,9 @@ class ValidateCustomFields(Validator):
         val = v.validate(value)
 
         if val:
+            # This ensures the modifications made by v's coercion rules are
+            # visible to this validator's output.
+            self.current[field] = v.current
             return True
 
         log.warning('Error validating properties for node %s: %s', self.document, v.errors)
diff --git a/tests/test_api/test_patch.py b/tests/test_api/test_patch.py
index d39e82fe..2433fc79 100644
--- a/tests/test_api/test_patch.py
+++ b/tests/test_api/test_patch.py
@@ -187,14 +187,14 @@ class EditCommentTest(AbstractPatchCommentTest):
                          json={'op': 'edit', 'content': 'Je moeder is niet je vader.'},
                          auth_token=token).json()
         self.assertEqual('<p>Je moeder is niet je vader.</p>\n',
-                         res['properties']['content_html'])
+                         res['properties']['_content_html'])
 
         # Get the node again, to inspect its changed state.
         patched_node = self.get(self.node_url, auth_token=token).json()
         self.assertEqual('Je moeder is niet je vader.',
                          patched_node['properties']['content'])
         self.assertEqual('<p>Je moeder is niet je vader.</p>\n',
-                         patched_node['properties']['content_html'])
+                         patched_node['properties']['_content_html'])
         self.assertNotEqual(pre_node['_etag'], patched_node['_etag'])
 
     def test_comment_edit_other_user_admin(self):
@@ -214,7 +214,7 @@ class EditCommentTest(AbstractPatchCommentTest):
         self.assertEqual('Purrrr kittycat',
                          patched_node['properties']['content'])
         self.assertEqual('<p>Purrrr kittycat</p>\n',
-                         patched_node['properties']['content_html'])
+                         patched_node['properties']['_content_html'])
 
     def test_edit_noncomment_node(self):
         url = '/api/nodes/%s' % self.asset_id