diff --git a/Engine.Core/HierarchyObject.cs b/Engine.Core/HierarchyObject.cs
index 87316f8..e617ede 100644
--- a/Engine.Core/HierarchyObject.cs
+++ b/Engine.Core/HierarchyObject.cs
@@ -108,13 +108,13 @@ public class HierarchyObject : BaseEntity, IHierarchyObject
         OnChildrenAdded?.Invoke(this, parent);
     }
 
-    public void RemoveChild(IHierarchyObject parent)
+    public void RemoveChild(IHierarchyObject child)
     {
-        if (!_children.Remove(parent))
+        if (!_children.Remove(child))
             return;
 
-        parent.SetParent(null);
-        OnChildrenRemoved?.Invoke(this, parent);
+        child.SetParent(null);
+        OnChildrenRemoved?.Invoke(this, child);
     }
 
     protected virtual void OnAssign(IBehaviourController behaviourController) { }