diff -u -r ../mandoc-1.14.5/tag.h ./tag.h
--- ../mandoc-1.14.5/tag.h	2019-03-10 09:56:43.000000000 +0000
+++ ./tag.h	2019-03-17 11:02:57.271630396 +0000
@@ -16,8 +16,8 @@
  */
 
 struct	tag_files {
-	char	 ofn[20];
-	char	 tfn[20];
+	char	 ofn[127];
+	char	 tfn[127];
 	char	*tagname;
 	int	 ofd;
 	int	 tfd;