diff --git a/dev-python/cryptography/cryptography-1.7.2.ebuild b/dev-python/cryptography/cryptography-1.7.2.ebuild
index c3e3fae627df8..8bd074b435262 100644
--- a/dev-python/cryptography/cryptography-1.7.2.ebuild
+++ b/dev-python/cryptography/cryptography-1.7.2.ebuild
@@ -14,7 +14,7 @@ SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
 
 LICENSE="|| ( Apache-2.0 BSD )"
 SLOT="0"
-KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~amd64-linux ~x86-linux"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86 ~x64-cygwin ~amd64-linux ~x86-linux"
 IUSE="libressl test"
 
 RDEPEND="