diff --git a/apps/web/src/components/ui.tsx b/apps/web/src/components/ui.tsx
index 054fcec..d67b252 100644
--- a/apps/web/src/components/ui.tsx
+++ b/apps/web/src/components/ui.tsx
@@ -8,7 +8,7 @@ export function Button({
 }
 
 export function Field(
-  props: InputHTMLAttributes<HTMLInputElement> & { label: string; error?: string },
+  props: InputHTMLAttributes<HTMLInputElement> & { label: string; error?: string | undefined },
 ) {
   const { label, error, ...input } = props;
   return (