diff --git a/backend/users/authentication.py b/backend/users/authentication.py
index 3114f2263..7fc25c7b5 100644
--- a/backend/users/authentication.py
+++ b/backend/users/authentication.py
@@ -75,11 +75,12 @@ def filter_users_by_claims(self, claims):
         openid_subject = claims.get("sub")
         issuer = claims.get("_openid_issuer")
         try:
-            return (
+            # return a list because mozilla_django_oidc expects some kind of range
+            return [
                 UserOidcInfo.objects.select_related("user")
                 .get(openid_issuer=issuer, openid_subject=openid_subject)
                 .user
-            )
+            ]
         except UserOidcInfo.DoesNotExist:
             return self.UserModel.objects.none()