diff --git a/sys/compat/linux/linux_event.c b/sys/compat/linux/linux_event.c
index 544914794df..973b5ea44b7 100644
--- a/sys/compat/linux/linux_event.c
+++ b/sys/compat/linux/linux_event.c
@@ -462,8 +462,10 @@ linux_epoll_ctl(struct thread *td, struct linux_epoll_ctl_args *args)
 	    cap_rights_init(&rights, CAP_KQUEUE_CHANGE), &epfp);
 	if (error != 0)
 		return (error);
-	if (epfp->f_type != DTYPE_KQUEUE)
+	if (epfp->f_type != DTYPE_KQUEUE) {
+		error = EINVAL;
 		goto leave1;
+	}
 
 	 /* Protect user data vector from incorrectly supplied fd. */
 	error = fget(td, args->fd, cap_rights_init(&rights, CAP_POLL_EVENT), &fp);
@@ -560,6 +562,10 @@ linux_epoll_wait_common(struct thread *td, int epfd, struct epoll_event *events,
 	    cap_rights_init(&rights, CAP_KQUEUE_EVENT), &epfp);
 	if (error != 0)
 		return (error);
+	if (epfp->f_type != DTYPE_KQUEUE) {
+		error = EINVAL;
+		goto leave;
+	}
 
 	coargs.leventlist = events;
 	coargs.p = td->td_proc;