diff --git a/dev-lang/lua/lua51-5.1.4.recipe b/dev-lang/lua/lua51-5.1.4.recipe
index fdcfd66be..e4153c3b5 100644
--- a/dev-lang/lua/lua51-5.1.4.recipe
+++ b/dev-lang/lua/lua51-5.1.4.recipe
@@ -14,7 +14,7 @@ CHECKSUM_SHA256="b038e225eaf2a5b57c9bcc35cd13aa8c6c8288ef493d52970c9545074098af3
 SOURCE_DIR="lua-$portVersion"
 PATCHES="lua-5.1.4.patchset"
 
-ARCHITECTURES="x86 x86_gcc2"
+ARCHITECTURES="x86_gcc2 x86 x86_64"
 SECONDARY_ARCHITECTURES="x86 x86_gcc2"
 
 PROVIDES="