===================================================================
RCS file: /cvs/mandoc/mdoc_validate.c,v
retrieving revision 1.384
retrieving revision 1.386
diff -u -p -r1.384 -r1.386
--- mandoc/mdoc_validate.c	2020/04/08 11:56:03	1.384
+++ mandoc/mdoc_validate.c	2020/04/24 12:02:33	1.386
@@ -1,4 +1,4 @@
-/* $Id: mdoc_validate.c,v 1.384 2020/04/08 11:56:03 schwarze Exp $ */
+/* $Id: mdoc_validate.c,v 1.386 2020/04/24 12:02:33 schwarze Exp $ */
 /*
  * Copyright (c) 2010-2020 Ingo Schwarze <schwarze@openbsd.org>
  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
@@ -37,11 +37,11 @@
 #include "mandoc.h"
 #include "mandoc_xr.h"
 #include "roff.h"
-#include "tag.h"
 #include "mdoc.h"
 #include "libmandoc.h"
 #include "roff_int.h"
 #include "libmdoc.h"
+#include "tag.h"
 
 /* FIXME: .Bl -diag can't have non-text children in HEAD. */
 
@@ -2765,8 +2765,14 @@ post_dt(POST_ARGS)
 		mandoc_msg(MANDOCERR_MSEC_BAD,
 		    nn->line, nn->pos, "Dt ... %s", nn->string);
 		mdoc->meta.vol = mandoc_strdup(nn->string);
-	} else
+	} else {
 		mdoc->meta.vol = mandoc_strdup(cp);
+		if (mdoc->filesec != '\0' &&
+		    mdoc->filesec != *nn->string &&
+		    *nn->string >= '1' && *nn->string <= '9')
+			mandoc_msg(MANDOCERR_MSEC_FILE, nn->line, nn->pos,
+			    "*.%c vs Dt ... %c", mdoc->filesec, *nn->string);
+	}
 
 	/* Optional third argument: architecture. */