diff --git a/ab6d276f6fcb b/ab6d276f6fcb
new file mode 100644
index 0000000..df6f60c
--- /dev/null
+++ b/ab6d276f6fcb
@@ -0,0 +1,43 @@
+
+# HG changeset patch
+# User Rik <rik@octave.org>
+# Date 1668451079 28800
+# Node ID ab6d276f6fcb90631131eeb6668efd4f54a36204
+# Parent  662499ba0d21173006f99fc3b14b9a76a0e8670a
+build: Enable building of Qt documentation with Texinfo >= 7.0 (bug #62648).
+
+* doc/interpreter/mk-qthelp.pl: Update regular expressions that find the start
+of data in index.html and Function-index.html to include additional pattern
+generated by Texinfo 7.0.
+
+diff --git a/doc/interpreter/mk-qthelp.pl b/doc/interpreter/mk-qthelp.pl
+--- a/doc/interpreter/mk-qthelp.pl
++++ b/doc/interpreter/mk-qthelp.pl
+@@ -26,8 +26,11 @@
+ open (my $HTML, "<", $htmlfname) or die "Unable to open $htmlfname";
+ 
+ # Skip through preamble of file to find start of list
+-while (($_ = <$HTML>) !~ /^<div class="contents">/ ) {;}
+-while (($_ = <$HTML>) !~ /^<ul class="no-bullet">/ ) {;}
++while (defined ($_ = <$HTML>) and ! /^<div class="contents">/ ) {;}
++while (defined ($_ = <$HTML>)
++         and ! /^<ul class="(?:no-bullet|toc-numbered-mark)">/ ) {;}
++
++die "index.html: reached EOF without finding data start pattern" if eof ($HTML);
+ 
+ $level = 0;
+ while (<$HTML>)
+@@ -68,7 +71,11 @@
+ open ($HTML, "<", $htmlfname) or die "Unable to open $htmlfname";
+ 
+ # Skip through preamble of file to find start of list
+-while (($_ = <$HTML>) !~ /^<table class="index-fn/ ) {;}
++while (defined ($_ = <$HTML>)
++         and ! /^<table class="(?:index-fn|fn-entries)/ ) {;}
++
++die "Function-Index.html: reached EOF without finding data start pattern"
++  if eof ($HTML);
+ 
+ while (<$HTML>)
+ {
+
diff --git a/octave.spec b/octave.spec
index 0119d9d..d7adcff 100644
--- a/octave.spec
+++ b/octave.spec
@@ -3,13 +3,7 @@
 
 %global macrosdir %(d=%{_rpmconfigdir}/macros.d; [ -d $d ] || d=%{_sysconfdir}/rpm; echo $d)
 
-%if 0%{?fedora} >= 38
-# Infinite loop with texinfo 7
-# https://savannah.gnu.org/bugs/index.php?63810
-%global builddocs 0
-%else
 %global builddocs 1
-%endif
 
 %if 0%{?fedora}
 %bcond_without flexiblas
@@ -43,7 +37,7 @@
 Name:           octave
 Epoch:          6
 Version:        7.3.0
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        A high-level language for numerical computations
 License:        GPLv3+
 URL:            http://www.octave.org
@@ -56,6 +50,9 @@ Source2:        xorg.conf
 %if !%{builddocs}
 Source3:        octave-%{version}-docs.tar.xz
 %endif
+# Infinite loop with texinfo 7
+# https://savannah.gnu.org/bugs/index.php?63810
+Patch0:         https://hg.savannah.gnu.org/hgweb/octave/raw-rev/ab6d276f6fcb
 # Add needed time.h header
 Patch2:         octave-time.patch
 
@@ -464,10 +461,13 @@ make check
 %{_pkgdocdir}/refcard*.pdf
 
 %changelog
+* Fri Mar 17 2023 Orion Poplawski <orion@nwra.com> - 6:7.3.0-4
+- Add upstream patch to fix doc builds
+
 * Sun Feb 26 2023 Orion Poplawski <orion@nwra.com> - 6:7.3.0-3
 - Disable building docs due to texinfo 7 incompatibility
 
-* Wed Jan 11 2023 FeRD (Frank Dana> <ferdnyc@gmail.com> - 6:7.3.0-3
+* Fri Feb 10 2023 FeRD (Frank Dana> <ferdnyc@gmail.com> - 6:7.3.0-3
 - Build with rapidjson to enable built-in json{decode,encode}
 
 * Thu Jan 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 6:7.3.0-2
diff --git a/sources b/sources
index d19d8b5..28a1449 100644
--- a/sources
+++ b/sources
@@ -1,2 +1 @@
 SHA512 (octave-7.3.0.tar.lz) = 8448aa01fa2a0650993ff9e4a4a017c243d5bf4af17cc321458e583913f4a71c2a34d60c1f79b8fedd5f00604f0960b94a4e2c0d9b87f07b13e969afe2951aa2
-SHA512 (octave-7.3.0-docs.tar.xz) = a902b77117cf1c361b0d7c538ac4ed52140f073c1bddda5f10fe9d61c5a608a6be6b34cbab0e585a2deee04d09ed968a2d74b77d835bdadb445162143dcebc2b