diff --git a/nixserver/src/components/Layout.tsx b/nixserver/src/components/Layout.tsx
index 3e2f4c6..55ca917 100644
--- a/nixserver/src/components/Layout.tsx
+++ b/nixserver/src/components/Layout.tsx
@@ -18,7 +18,7 @@ type NavItem = { label: string; to: string }
 type NavCategory = {
   id: string
   label: string
-  icon: React.ComponentType<{ size?: number; className?: string }>
+  icon: React.ComponentType<{ size?: number | string; className?: string }>
   items: NavItem[]
 }