diff --git a/main/models.py b/main/models.py
index 66a124df6f4c5453edff85b45034cb242029b0eb..da802482ef4760f1dd4d2b041011d931d23260cf 100644
--- a/main/models.py
+++ b/main/models.py
@@ -718,8 +718,8 @@ class MainSimplePage(ExtendedMetadataPageMixin, SubpageMixin, MetadataPageMixin,
 
     ### RELATIONS
 
-    parent_page_types = ["main.MainHomePage"]
-    subpage_types = []
+    parent_page_types = ["main.MainHomePage", "main.MainSimplePage"]
+    subpage_types = ["main.MainSimplePage"]
 
     ### OTHERS
     class Meta: