Clean-ups & documentation.

1 files changed, 2 insertions, 1 deletions

diff --git a/validate.c b/validate.c
index dbe41e4f..9f9d5cde 100644
--- a/validate.c
+++ b/validate.c
@@ -306,7 +306,8 @@ pre_display(struct mdoc *mdoc, struct mdoc_node *node)
 	if (MDOC_BLOCK != node->type)
 		return(1);
 
-	for (n = mdoc->last; n; n = n->parent) 
+	assert(mdoc->last);
+	for (n = mdoc->last->parent; n; n = n->parent) 
 		if (MDOC_BLOCK == n->type)
 			if (MDOC_Bd == n->tok)
 				break;