1 files changed, 1 insertions, 1 deletions
diff --git a/file.c b/file.c
index 5102c77..ee72a87 100644
--- a/file.c
+++ b/file.c
@@ -5727,7 +5727,7 @@ HTMLlineproc2body(Buffer *buf, Str (*feed) (), int llimit)
 			a_href->end.pos = pos;
 			if (a_href->start.line == a_href->end.line &&
 			    a_href->start.pos == a_href->end.pos) {
-			    if (buf->hmarklist &&
+			    if (buf->hmarklist && a_href->hseq >= 0 &&
 				a_href->hseq < buf->hmarklist->nmark)
 				buf->hmarklist->marks[a_href->hseq].invalid = 1;
 			    a_href->hseq = -1;