===================================================================
RCS file: /cvs/mandoc/tbl_term.c,v
retrieving revision 1.62
retrieving revision 1.63
diff -u -p -r1.62 -r1.63
--- mandoc/tbl_term.c	2018/11/28 04:47:51	1.62
+++ mandoc/tbl_term.c	2018/11/28 13:43:54	1.63
@@ -1,4 +1,4 @@
-/*	$Id: tbl_term.c,v 1.62 2018/11/28 04:47:51 schwarze Exp $ */
+/*	$Id: tbl_term.c,v 1.63 2018/11/28 13:43:54 schwarze Exp $ */
 /*
  * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2011-2018 Ingo Schwarze <schwarze@openbsd.org>
@@ -437,11 +437,14 @@ term_tbl(struct termp *tp, const struct tbl_span *sp)
 				 * but not after the last column.
 				 */
 
-				if (fc == 0 && ((uvert == 0 && dvert == 0 &&
-				     (cp->next == NULL ||
+				if (fc == 0 &&
+				    ((uvert == 0 && dvert == 0 &&
+				      cp != NULL && (cp->next == NULL ||
 				      !IS_HORIZ(cp->next))) ||
-				    tp->tcol + 1 == tp->tcols + tp->lasttcol)) {
-					cp = cp->next;
+				     tp->tcol + 1 ==
+				      tp->tcols + tp->lasttcol)) {
+					if (cp != NULL)
+						cp = cp->next;
 					continue;
 				}