diff --git a/doc/Makefile.am b/doc/Makefile.am
index c6e8e262d..7a63a2f86 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -34,6 +34,8 @@ check-texinfo:
 	grep non-zero $(srcdir)/*.texi && fail=1; \
 	grep -w NUL $(srcdir)/*.texi && fail=1; \
 	grep '\$$@"' $(srcdir)/*.texi && fail=1; \
+	grep -n filename $(srcdir)/*.texi|grep -vE 'setfilename|{filename}' \
+	  && fail=1; \
 	$(PERL) -e 1 2> /dev/null && { $(PERL) -ne \
 	  '/\bPOSIX\b/ && !/\@acronym{POSIX}/ && !/^\* / || /{posix}/ and print,exit 1' \
 	  $(srcdir)/*.texi 2> /dev/null || fail=1; }; \