diff --git a/math/octave-forge-generate_html/Makefile b/math/octave-forge-generate_html/Makefile
index ab958ece57b7..95db1040c586 100644
--- a/math/octave-forge-generate_html/Makefile
+++ b/math/octave-forge-generate_html/Makefile
@@ -1,29 +1,29 @@
 # Created by: Stephen Montgomery-Smith <stephen@math.missouri.edu>
 
 PORTNAME=	octave-forge-generate_html
 PORTVERSION=	0.3.2
-PORTREVISION=	3
+PORTREVISION=	4
 CATEGORIES=	math
 
 MAINTAINER=	stephen@FreeBSD.org
 COMMENT=	Octave-forge package ${OCTAVE_PKGNAME}
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKDIR}/${OCTSRC}/COPYING
 
 # OCTSRC is the name of the directory of the package.
 # It is usually ${OCTAVE_PKGNAME} or ${DISTNAME}.
 OCTSRC=		${DISTNAME}
 
 .include "${.CURDIR}/../../Mk/bsd.octave.mk"
 
 do-build:
 	@${DO_NADA}
 
 NO_ARCH=	yes
 
 post-build:
 	${RM} ${WRKSRC}/Makefile ${WRKSRC}/configure
 	cd ${WRKDIR} && ${TAR} cfz ${DISTNAME}.tar.gz ${OCTSRC}
 
 .include <bsd.port.mk>
diff --git a/math/octave-forge-generate_html/files/patch-txi2index.m b/math/octave-forge-generate_html/files/patch-txi2index.m
new file mode 100644
index 000000000000..5e2d859511fb
--- /dev/null
+++ b/math/octave-forge-generate_html/files/patch-txi2index.m
@@ -0,0 +1,20 @@
+--- inst/txi2index.m.orig	2022-04-08 22:22:07.568707000 -0500
++++ inst/txi2index.m	2022-04-08 22:22:27.662102000 -0500
+@@ -86,7 +86,7 @@
+       elseif (strncmpi (SECTION, line, length (SECTION)))
+         section = strtrim (line (length (SECTION)+1:end));
+         if (idx == 0 || !isempty (index.provides{idx}.functions))
+-          idx ++;
++          idx++;
+         endif
+ 
+         index.provides{idx} = struct ();
+@@ -94,7 +94,7 @@
+         index.provides{idx}.functions = {};
+       elseif (strncmpi (DOCSTRING, line, length (DOCSTRING)))
+         if (idx == 0)
+-          idx ++;
++          idx++;
+ 
+           index.provides{idx} = struct ();
+           index.provides{idx}.category = default_section;