diff --git a/buildtrigger/gitlabhandler.py b/buildtrigger/gitlabhandler.py
index f23b4a80a..7abedc2d0 100644
--- a/buildtrigger/gitlabhandler.py
+++ b/buildtrigger/gitlabhandler.py
@@ -307,23 +307,30 @@ class GitLabBuildTrigger(BuildTriggerHandler):
   @_catch_timeouts
   def list_build_sources_for_namespace(self, namespace):
     def repo_view(repo):
-      last_modified = dateutil.parser.parse(repo['last_activity_at'])
-      has_admin_permission = False
+      # Because *anything* can be None in GitLab API!
+      permissions = repo.get('permissions') or {}
+      project_access = permissions.get('project_access') or {}
+      access_level = project_access.get('access_level') or 0
+      has_admin_permission = _ACCESS_LEVEL_MAP.get(access_level, ("", False))[1]
 
-      if repo.get('permissions'):
-        access_level = repo['permissions']['project_access']['access_level']
-        has_admin_permission = _ACCESS_LEVEL_MAP.get(access_level, ("", False))[1]
-
-      return {
+      view = {
         'name': repo['path'],
         'full_name': repo['path_with_namespace'],
-        'description': repo['description'] or '',
-        'last_updated': timegm(last_modified.utctimetuple()),
-        'url': repo['web_url'],
+        'description': repo.get('description') or '',
+        'url': repo.get('web_url'),
         'has_admin_permissions': has_admin_permission,
-        'private': repo['public'] is False,
+        'private': repo.get('public', False) is False,
       }
 
+      if repo.get('last_activity_at'):
+        try:
+          last_modified = dateutil.parser.parse(repo['last_activity_at'])
+          view['last_updated'] = timegm(last_modified.utctimetuple())
+        except ValueError:
+          logger.exception('Gitlab gave us an invalid last_activity_at: %s', last_modified)
+
+      return view
+
     gl_client = self._get_authorized_client()
     repositories = _paginated_iterator(gl_client.getprojects, RepositoryReadException)
     repos = [repo_view(repo) for repo in repositories if repo['namespace']['path'] == namespace]
diff --git a/buildtrigger/test/gitlabmock.py b/buildtrigger/test/gitlabmock.py
index 2c9489ae6..c15f42a6b 100644
--- a/buildtrigger/test/gitlabmock.py
+++ b/buildtrigger/test/gitlabmock.py
@@ -27,6 +27,13 @@ def get_currentuser_mock():
   }
 
 def project(namespace, name, is_org=False):
+  project_access = None
+
+  if namespace == 'knownuser':
+    project_access = {
+      'access_level': 50,
+    }
+
   data = {
     'id': '%s/%s' % (namespace, name),
     'default_branch': 'master',
@@ -43,9 +50,7 @@ def project(namespace, name, is_org=False):
     'ssh_url_to_repo': 'git://%s/%s' % (namespace, name),
     'public': name != 'somerepo',
     'permissions': {
-      'project_access': {
-        'access_level': 50 if namespace == 'knownuser' else 0,
-      }
+      'project_access': project_access,
     },
     'owner': {
       'avatar_url': 'avatarurl',