diff --git a/sys/dev/null/null.c b/sys/dev/null/null.c
index 7ffc618e63ee..99ee04060d23 100644
--- a/sys/dev/null/null.c
+++ b/sys/dev/null/null.c
@@ -53,6 +53,13 @@ static d_write_t null_write;
 static d_ioctl_t null_ioctl;
 static d_ioctl_t zero_ioctl;
 static d_read_t zero_read;
+static d_kqfilter_t zero_kqfilter;
+static f_event zero_kread;
+
+static const struct filterops zero_filterops_read = {
+	.f_isfd =	1,
+	.f_event =	zero_kqread,
+};
 
 static struct cdevsw full_cdevsw = {
 	.d_version =	D_VERSION,
@@ -75,6 +82,7 @@ static struct cdevsw zero_cdevsw = {
 	.d_read =	zero_read,
 	.d_write =	null_write,
 	.d_ioctl =	zero_ioctl,
+	.d_kqfilter =	zero_kqfilter,
 	.d_name =	"zero",
 	.d_flags =	D_MMAP_ANON,
 };
@@ -197,5 +205,27 @@ null_modevent(module_t mod __unused, int type, void *data __unused)
 	return (0);
 }
 
+static int
+zero_kqread(struct knote *kn, long hint)
+{
+	return 1;
+}
+
+static int
+zero_kqfilter(struct cdev *dev, struct knote *kn)
+{
+	if (kn->kn_filter != EVFILT_READ)
+		return(EOPNOTSUPP);
+
+	struct knlist lst;
+	knlist_init(&lst, NULL, NULL, NULL, NULL);
+	kn->kn_fop = &zero_filterops_read;
+	knlist_add(&lst, kn, 0);
+	KNOTE_LOCKED(&lst, 0);
+	knlist_remove(&lst, kn, 0);
+
+	return (0);
+}
+
 DEV_MODULE(null, null_modevent, NULL);
 MODULE_VERSION(null, 1);