diff --git a/src/app/book-appointment/page.tsx b/src/app/book-appointment/page.tsx
index 1520ee9..943b4d2 100644
--- a/src/app/book-appointment/page.tsx
+++ b/src/app/book-appointment/page.tsx
@@ -63,7 +63,7 @@ export default function BookAppointmentPage() {
     return Object.keys(newErrors).length === 0;
   };
 
-  const handleSubmit = (e: React.FormEvent) => {
+  const handleSubmit = (e: React.FormEvent): void => {
     e.preventDefault();
 
     if (validateForm()) {