diff --git a/polymorphic/admin.py b/polymorphic/admin.py
index 4dc0b4e..52e71cd 100644
--- a/polymorphic/admin.py
+++ b/polymorphic/admin.py
@@ -231,8 +231,15 @@ class PolymorphicParentModelAdmin(admin.ModelAdmin):
 
 
     def queryset(self, request):
+        self.get_queryset(request)
+
+
+    def get_queryset(self, request):
         # optimize the list display.
-        qs = super(PolymorphicParentModelAdmin, self).queryset(request)
+        try:
+            qs = super(PolymorphicParentModelAdmin, self).get_queryset(request)
+        except:
+            qs = super(PolymorphicParentModelAdmin, self).queryset(request)
         if not self.polymorphic_list:
             qs = qs.non_polymorphic()
         return qs
diff --git a/polymorphic/manager.py b/polymorphic/manager.py
index 3e0e6d8..47d0c27 100644
--- a/polymorphic/manager.py
+++ b/polymorphic/manager.py
@@ -30,9 +30,13 @@ class PolymorphicManager(models.Manager):
 
         super(PolymorphicManager, self).__init__(*args, **kwrags)
 
-    def get_query_set(self):
+    def get_queryset(self):
         return self.queryset_class(self.model, using=self._db)
 
+    def get_query_set(self):
+        return self.get_queryset()
+
+
     # Proxy all unknown method calls to the queryset, so that its members are
     # directly accessible as PolymorphicModel.objects.*
     # The advantage of this method is that not yet known member functions of derived querysets will be proxied as well.