diff --git a/common/lib/xmodule/xmodule/seq_module.py b/common/lib/xmodule/xmodule/seq_module.py
index 401b7006da..d88c8b1434 100644
--- a/common/lib/xmodule/xmodule/seq_module.py
+++ b/common/lib/xmodule/xmodule/seq_module.py
@@ -238,8 +238,6 @@ class SequenceModule(SequenceFields, ProctoringFields, XModule):
                 'complete': complete
             })
         elif dispatch == 'metadata':
-            if self.category != 'sequential':
-                return json.dumps({})
             context = {'exclude_units': True}
             prereq_met = True
             prereq_meta_info = {}
@@ -411,11 +409,18 @@ class SequenceModule(SequenceFields, ProctoringFields, XModule):
         """
         Returns a dict of information about gated_content context
         """
-        gated_content = {}
-        gated_content['gated'] = not prereq_met
-        gated_content['prereq_url'] = prereq_meta_info['url'] if not prereq_met else None
-        gated_content['prereq_section_name'] = prereq_meta_info['display_name'] if not prereq_met else None
-        gated_content['gated_section_name'] = self.display_name
+        gated_content = {
+            'prereq_id': None,
+            'prereq_url': None,
+            'prereq_section_name': None,
+            'gated': False,
+            'gated_section_name': self.display_name,
+        }
+        if not prereq_met:
+            gated_content['gated'] = True
+            gated_content['prereq_url'] = prereq_meta_info['url']
+            gated_content['prereq_section_name'] = prereq_meta_info['display_name']
+            gated_content['prereq_id'] = prereq_meta_info['id']
 
         return gated_content
 
diff --git a/common/lib/xmodule/xmodule/tests/test_sequence.py b/common/lib/xmodule/xmodule/tests/test_sequence.py
index 194760cd1d..d89cf7917a 100644
--- a/common/lib/xmodule/xmodule/tests/test_sequence.py
+++ b/common/lib/xmodule/xmodule/tests/test_sequence.py
@@ -278,7 +278,7 @@ class SequenceBlockTestCase(XModuleXmlImportTest):
         gating_mock_1_2.return_value.required_prereq.return_value = True
         gating_mock_1_2.return_value.compute_is_prereq_met.return_value = [
             False,
-            {'url': 'PrereqUrl', 'display_name': 'PrereqSectionName'}
+            {'url': 'PrereqUrl', 'display_name': 'PrereqSectionName', 'id': 'mockId'}
         ]
         self.sequence_1_2.xmodule_runtime._services['gating'] = gating_mock_1_2  # pylint: disable=protected-access
         self.sequence_1_2.display_name = 'sequence_1_2'
diff --git a/openedx/core/lib/gating/api.py b/openedx/core/lib/gating/api.py
index 80e4f621ef..d07783b2f5 100644
--- a/openedx/core/lib/gating/api.py
+++ b/openedx/core/lib/gating/api.py
@@ -20,7 +20,7 @@ from util import milestones_helpers
 from xblock.completable import XBlockCompletionMode as CompletionMode
 from xmodule.modulestore.django import modulestore
 from xmodule.modulestore.exceptions import ItemNotFoundError
-import six
+
 
 log = logging.getLogger(__name__)
 
@@ -164,7 +164,7 @@ def get_prerequisites(course_key):
         milestone = milestones_by_block_id.get(block.location.block_id)
         if milestone:
             milestone['block_display_name'] = block.display_name
-            milestone['block_usage_key'] = six.text_type(block.location)
+            milestone['block_usage_key'] = str(block.location)
             result.append(milestone)
 
     return result
@@ -184,7 +184,7 @@ def add_prerequisite(course_key, prereq_content_key):
     """
     milestone = milestones_api.add_milestone(
         {
-            'name': _(u'Gating milestone for {usage_key}').format(usage_key=six.text_type(prereq_content_key)),
+            'name': _(u'Gating milestone for {usage_key}').format(usage_key=str(prereq_content_key)),
             'namespace': "{usage_key}{qualifier}".format(
                 usage_key=prereq_content_key,
                 qualifier=GATING_NAMESPACE_QUALIFIER
@@ -383,7 +383,8 @@ def compute_is_prereq_met(content_id, user_id, recalc_on_unmet=False):
         subsection = store.get_item(subsection_usage_key)
         prereq_meta_info = {
             'url': reverse('jump_to', kwargs={'course_id': course_key, 'location': subsection_usage_key}),
-            'display_name': subsection.display_name
+            'display_name': subsection.display_name,
+            'id': str(subsection_usage_key)
         }
         prereq_met = update_milestone(milestone, subsection_usage_key, milestone, student)