diff --git a/sci-chemistry/mopac7/mopac7-1.15-r1.ebuild b/sci-chemistry/mopac7/mopac7-1.15-r1.ebuild
index 1b158373be657..1decbcf89b244 100644
--- a/sci-chemistry/mopac7/mopac7-1.15-r1.ebuild
+++ b/sci-chemistry/mopac7/mopac7-1.15-r1.ebuild
@@ -14,7 +14,7 @@ SRC_URI="
 
 LICENSE="public-domain"
 SLOT="0"
-KEYWORDS="~amd64 ppc ~x86 ~amd64-linux"
+KEYWORDS="amd64 ppc ~x86 ~amd64-linux"
 IUSE="gmxmopac7 static-libs"
 
 DEPEND="dev-libs/libf2c"