diff --git a/app-emacs/undo-tree/undo-tree-0.6.6.ebuild b/app-emacs/undo-tree/undo-tree-0.6.6.ebuild
index 9be59c1e5c293..2c494eeba2d4d 100644
--- a/app-emacs/undo-tree/undo-tree-0.6.6.ebuild
+++ b/app-emacs/undo-tree/undo-tree-0.6.6.ebuild
@@ -12,7 +12,7 @@ SRC_URI="https://dev.gentoo.org/~ulm/distfiles/${P}.el.xz"
 
 LICENSE="GPL-3+"
 SLOT="0"
-KEYWORDS="amd64 ~x86"
+KEYWORDS="amd64 x86"
 
 SITEFILE="50${PN}-gentoo.el"
 DOC_CONTENTS="To enable undo trees globally, place '(global-undo-tree-mode)'