diff --git a/dev-util/capstone/capstone-3.0.4.recipe b/dev-util/capstone/capstone-3.0.4.recipe
index d8c43acab..a12356bbc 100644
--- a/dev-util/capstone/capstone-3.0.4.recipe
+++ b/dev-util/capstone/capstone-3.0.4.recipe
@@ -18,7 +18,7 @@ LICENSE="BSD (3-clause)"
 COPYRIGHT="2013-2015, COSEINC"
 REVISION="1"
 
-ARCHITECTURES="x86"
+ARCHITECTURES="x86 x86_64"
 SECONDARY_ARCHITECTURES="x86"
 
 SOURCE_URI="https://github.com/aquynh/capstone/archive/$portVersion.tar.gz"