diff --git a/dev-ruby/minitar/minitar-0.9.ebuild b/dev-ruby/minitar/minitar-0.9.ebuild
index ee5dabb59c7ee..cd8c741877423 100644
--- a/dev-ruby/minitar/minitar-0.9.ebuild
+++ b/dev-ruby/minitar/minitar-0.9.ebuild
@@ -20,7 +20,7 @@ RUBY_S="minitar-${PV}"
 
 LICENSE="|| ( BSD-2 Ruby )"
 SLOT="0"
-KEYWORDS="amd64 arm arm64 ~hppa ppc ~ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x64-solaris ~x86-solaris"
+KEYWORDS="~alpha amd64 arm arm64 ~hppa ppc ~ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x64-solaris ~x86-solaris"
 IUSE=""
 
 ruby_add_bdepend "test? ( >=dev-ruby/minitest-5.3:5 )"