diff --git a/polymorphic/admin.py b/polymorphic/admin.py
index 709b796..5bbd730 100644
--- a/polymorphic/admin.py
+++ b/polymorphic/admin.py
@@ -126,6 +126,7 @@ class PolymorphicParentModelAdmin(admin.ModelAdmin):
     def __init__(self, model, admin_site, *args, **kwargs):
         super(PolymorphicParentModelAdmin, self).__init__(model, admin_site, *args, **kwargs)
         self._child_admin_site = self.admin_site.__class__(name=self.admin_site.name)
+        self._child_admin_site.get_app_list = lambda request: ()  # HACK: workaround for Django 1.9
         self._is_setup = False
 
     def _lazy_setup(self):