diff --git a/dev-util/cppunit/cppunit-1.12.1.recipe b/dev-util/cppunit/cppunit-1.12.1.recipe
index e370defd0..e14c549e3 100644
--- a/dev-util/cppunit/cppunit-1.12.1.recipe
+++ b/dev-util/cppunit/cppunit-1.12.1.recipe
@@ -15,7 +15,7 @@ COPYRIGHT="2000 Jerome Lacoste
 	2001-2002, 2007-2008  Steve Robbins
 	2012-2013 Harvey Brydon"
 REVISION="2"
-ARCHITECTURES="x86 x86_gcc2"
+ARCHITECTURES="x86 x86_gcc2 x86_64"
 SECONDARY_ARCHITECTURES="x86"
 
 PROVIDES="