diff --git a/media-libs/portaudio/portaudio-19.07.00.recipe b/media-libs/portaudio/portaudio-19.07.00.recipe
index e07f3ba4f..f7874d0dd 100644
--- a/media-libs/portaudio/portaudio-19.07.00.recipe
+++ b/media-libs/portaudio/portaudio-19.07.00.recipe
@@ -9,8 +9,9 @@ CHECKSUM_SHA256="47efbf42c77c19a05d22e627d42873e991ec0c1357219c0d74ce6a2948cb2de
 SOURCE_DIR="portaudio"
 PATCHES="portaudio-$portVersion.patchset"
 
-ARCHITECTURES="all"
-SECONDARY_ARCHITECTURES="x86"
+# disabled: no audio output backend for Haiku, yet
+ARCHITECTURES="?all"
+SECONDARY_ARCHITECTURES="?x86"
 
 PROVIDES="
 	portaudio$secondaryArchSuffix = $portVersion