diff --git a/Engine.Core/UniverseObject.cs b/Engine.Core/UniverseObject.cs
index 78307f2..d70e995 100644
--- a/Engine.Core/UniverseObject.cs
+++ b/Engine.Core/UniverseObject.cs
@@ -100,14 +100,14 @@ public class UniverseObject : BaseEntity, IUniverseObject
         return true;
     }
 
-    public void AddChild(IUniverseObject parent)
+    public void AddChild(IUniverseObject child)
     {
-        if (_children.Contains(parent))
+        if (_children.Contains(child))
             return;
 
-        _children.Add(parent);
-        parent.Parent = this;
-        OnChildrenAdded?.Invoke(this, new(parent));
+        _children.Add(child);
+        child.Parent = this;
+        OnChildrenAdded?.Invoke(this, new(child));
     }
 
     public void RemoveChild(IUniverseObject child)