diff --git a/dev-libs/libsigc++/libsigc++-3.6.0.ebuild b/dev-libs/libsigc++/libsigc++-3.6.0.ebuild
index 20ecf24e55aef..a7f3cdd14400f 100644
--- a/dev-libs/libsigc++/libsigc++-3.6.0.ebuild
+++ b/dev-libs/libsigc++/libsigc++-3.6.0.ebuild
@@ -10,7 +10,7 @@ HOMEPAGE="https://libsigcplusplus.github.io/libsigcplusplus/
 
 LICENSE="LGPL-2.1+"
 SLOT="3"
-KEYWORDS="~alpha amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~mips ~ppc ~ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x64-solaris"
+KEYWORDS="~alpha amd64 arm ~arm64 ~hppa ~ia64 ~loong ~mips ~ppc ~ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x64-solaris"
 IUSE="gtk-doc test"
 RESTRICT="!test? ( test )"