diff --git a/sys/vfs/procfs/procfs_vnops.c b/sys/vfs/procfs/procfs_vnops.c
index 9ca253e..3daad7a 100644
--- a/sys/vfs/procfs/procfs_vnops.c
+++ b/sys/vfs/procfs/procfs_vnops.c
@@ -175,8 +175,14 @@ procfs_open(struct vop_open_args *ap)
 	int error;
 
 	p2 = pfind(pfs->pfs_pid);
+	if (p2 == NULL) {
+		p2 = &proc0;
+		PHOLD(p2);
+	}
+
 	if (p2 == NULL)
 		return (ENOENT);
+
 	if (pfs->pfs_pid && !PRISON_CHECK(ap->a_cred, p2->p_ucred)) {
 		error = ENOENT;
 		goto done;