diff --git a/sci-libs/spqr/spqr-2.0.9-r4.ebuild b/sci-libs/spqr/spqr-2.0.9-r4.ebuild
index 0e88a5cfea9f..f30766f0a1db 100644
--- a/sci-libs/spqr/spqr-2.0.9-r4.ebuild
+++ b/sci-libs/spqr/spqr-2.0.9-r4.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2024 Gentoo Authors
+# Copyright 1999-2025 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -30,6 +30,11 @@ RDEPEND="${DEPEND}"
 src_prepare() {
 	default
 	elibtoolize
+
+	# Should be able to drop this workaround with newer versions.
+	# upstream fix it by replace \htmladdnormallink{...} with \url{}
+	sed -e '/^\\usepackage{hyperref}$/i \\\\usepackage{html}' \
+		-i Doc/spqr_user_guide.tex || die
 }
 
 src_configure() {