diff --git a/pages/event-types/[type].tsx b/pages/event-types/[type].tsx
index 8b88d7a4..4b1437ce 100644
--- a/pages/event-types/[type].tsx
+++ b/pages/event-types/[type].tsx
@@ -1090,6 +1090,7 @@ export const getServerSideProps = async (context: GetServerSidePropsContext) =>
       periodEndDate: true,
       periodCountCalendarDays: true,
       requiresConfirmation: true,
+      userId: true,
     },
   });
 
@@ -1099,6 +1100,12 @@ export const getServerSideProps = async (context: GetServerSidePropsContext) =>
     } as const;
   }
 
+  if (eventType.userId != session.user.id) {
+    return {
+      notFound: true,
+    } as const;
+  }
+
   const credentials = await prisma.credential.findMany({
     where: {
       userId: user.id,