diff --git a/media-libs/portaudio/portaudio-19.recipe b/media-libs/portaudio/portaudio-19.recipe
index fd3a4bc19..00cce2f3a 100644
--- a/media-libs/portaudio/portaudio-19.recipe
+++ b/media-libs/portaudio/portaudio-19.recipe
@@ -10,8 +10,8 @@ SOURCE_URI="http://portaudio.com/archives/pa_stable_v19_20111121.tgz"
 CHECKSUM_SHA256="9c26d1330d506496789edafe55b0386f20d83c4aa2c0e3f81fbeb0f114ab1b99"
 SOURCE_DIR="portaudio"
 
-ARCHITECTURES="x86_gcc2 x86 x86_64"
-SECONDARY_ARCHITECTURES="x86_gcc2 x86"
+ARCHITECTURES="?x86_gcc2 ?x86 ?x86_64"
+SECONDARY_ARCHITECTURES="?x86_gcc2 ?x86"
 
 PROVIDES="
 	portaudio$secondaryArchSuffix = $portVersion