diff --git a/dev-ruby/mime-types/mime-types-3.0-r1.ebuild b/dev-ruby/mime-types/mime-types-3.0-r1.ebuild
index bf94a1bccde01..1ac396fca3bc1 100644
--- a/dev-ruby/mime-types/mime-types-3.0-r1.ebuild
+++ b/dev-ruby/mime-types/mime-types-3.0-r1.ebuild
@@ -16,7 +16,7 @@ HOMEPAGE="https://github.com/mime-types/ruby-mime-types"
 
 LICENSE="MIT"
 SLOT="3"
-KEYWORDS="~alpha ~amd64 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+KEYWORDS="~alpha ~amd64 ~arm ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
 IUSE=""
 
 ruby_add_bdepend "test? ( dev-ruby/minitest:5 dev-ruby/minitest-bonus-assertions:2 )"