diff --git a/site/Site/Components/Landing/LandingShowcaseDiagram.razor.cs b/site/Site/Components/Landing/LandingShowcaseDiagram.razor.cs
index 17ffd29b..d2933a42 100644
--- a/site/Site/Components/Landing/LandingShowcaseDiagram.razor.cs
+++ b/site/Site/Components/Landing/LandingShowcaseDiagram.razor.cs
@@ -65,7 +65,7 @@ private void OnLinkAdded(BaseLinkModel link)
         link.TargetChanged += OnLinKTargetChanged;
     }
 
-    private void OnLinKTargetChanged(BaseLinkModel link, Anchor? oldTarget, Anchor? newTarget)
+    private void OnLinKTargetChanged(BaseLinkModel link, Anchor oldTarget, Anchor newTarget)
     {
         // only refresh on the first time the link is attached
         if (oldTarget is PositionAnchor