===================================================================
RCS file: /cvs/mandoc/mansearch.c,v
retrieving revision 1.71
retrieving revision 1.72
diff -u -p -r1.71 -r1.72
--- mandoc/mansearch.c	2017/04/18 13:57:56	1.71
+++ mandoc/mansearch.c	2017/04/18 15:06:49	1.72
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mansearch.c,v 1.71 2017/04/18 13:57:56 schwarze Exp $ */
+/*	$OpenBSD: mansearch.c,v 1.72 2017/04/18 15:06:49 schwarze Exp $ */
 /*
  * Copyright (c) 2012 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2013-2017 Ingo Schwarze <schwarze@openbsd.org>
@@ -672,6 +672,12 @@ exprterm(const struct mansearch *search, int argc, cha
 		return e;
 	}
 
+	if (strcmp("-i", argv[*argi]) == 0 && *argi + 1 < argc) {
+		cs = 0;
+		++*argi;
+	} else
+		cs = 1;
+
 	e = mandoc_calloc(1, sizeof(*e));
 	e->type = EXPR_TERM;
 	e->bits = 0;
@@ -690,7 +696,6 @@ exprterm(const struct mansearch *search, int argc, cha
 	 * If needed, request regular expression handling.
 	 */
 
-	cs = 1;
 	if (search->argmode == ARG_WORD) {
 		e->bits = TYPE_Nm;
 		e->match.type = DBM_REGEX;