diff --git a/docs/Concepts/OOP/OOP.md b/docs/Concepts/OOP/OOP.md
index 1006aef..da7eb6b 100644
--- a/docs/Concepts/OOP/OOP.md
+++ b/docs/Concepts/OOP/OOP.md
@@ -3,8 +3,7 @@ layout: default
 title: OOP
 description: An article dicussing Object Oriented Programming.
 nav_order: 1
-parent: OOP
-grand_parent: Concepts
+parent: Concepts
 has_children: false
 ---
 
diff --git a/docs/Concepts/Polymorphism/Polymorphism.md b/docs/Concepts/Polymorphism/Polymorphism.md
index 9f7dd90..f7f7ea6 100644
--- a/docs/Concepts/Polymorphism/Polymorphism.md
+++ b/docs/Concepts/Polymorphism/Polymorphism.md
@@ -3,8 +3,7 @@ layout: default
 title: Polymorphism
 description: An article dicussing "Polymorphism", which means "Many Forms".
 nav_order: 1
-parent: Polymorphism
-grand_parent: Concepts
+parent: Concepts
 has_children: false
 ---