diff --git a/app-crypt/dieharder/dieharder-3.31.1-r1.ebuild b/app-crypt/dieharder/dieharder-3.31.1-r1.ebuild
index 7120c3470b440..60c028b0d656f 100644
--- a/app-crypt/dieharder/dieharder-3.31.1-r1.ebuild
+++ b/app-crypt/dieharder/dieharder-3.31.1-r1.ebuild
@@ -11,7 +11,7 @@ SRC_URI="http://www.phy.duke.edu/~rgb/General/${PN}/${P}.tgz"
 
 LICENSE="GPL-2"
 SLOT="0"
-KEYWORDS="~amd64 ~hppa ~x86"
+KEYWORDS="~alpha ~amd64 ~hppa ~x86"
 IUSE="doc"
 
 RDEPEND="sci-libs/gsl"