diff --git a/app-text/mdbook/mdbook-0.4.40.ebuild b/app-text/mdbook/mdbook-0.4.40.ebuild
index 5886d336ee793..b3249d4b1ee69 100644
--- a/app-text/mdbook/mdbook-0.4.40.ebuild
+++ b/app-text/mdbook/mdbook-0.4.40.ebuild
@@ -268,7 +268,7 @@ S="${WORKDIR}/${P/b/B}"
 LICENSE="MPL-2.0 CC-BY-4.0 OFL-1.1"
 LICENSE+=" Apache-2.0 CC0-1.0 ISC MIT Unicode-DFS-2016" # crates
 SLOT="0"
-KEYWORDS="amd64 arm arm64 ppc ~ppc64 ~riscv ~s390 ~sparc x86"
+KEYWORDS="amd64 arm arm64 ppc ~ppc64 ~riscv ~s390 sparc x86"
 IUSE="doc"
 
 QA_FLAGS_IGNORED="usr/bin/${PN}"