diff --git a/app-text/mupdf/mupdf-1.21.1-r1.ebuild b/app-text/mupdf/mupdf-1.21.1-r1.ebuild
index 590791e7653fc..9917968a7e2ec 100644
--- a/app-text/mupdf/mupdf-1.21.1-r1.ebuild
+++ b/app-text/mupdf/mupdf-1.21.1-r1.ebuild
@@ -15,7 +15,7 @@ S="${WORKDIR}"/${P}-source
 
 LICENSE="AGPL-3"
 SLOT="0/${PV}"
-KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~ppc ~ppc64 ~riscv ~s390 ~x86"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
 IUSE="+drm +javascript opengl ssl X"
 REQUIRED_USE="opengl? ( javascript )"