diff --git a/srcpkgs/libieee1284/template b/srcpkgs/libieee1284/template
index eab022e9da..6fbed76909 100644
--- a/srcpkgs/libieee1284/template
+++ b/srcpkgs/libieee1284/template
@@ -11,7 +11,11 @@ license="GPL-2"
 distfiles="$SOURCEFORGE_SITE/$pkgname/$pkgname-$version.tar.bz2"
 checksum=7730de107782e5d2b071bdcb5b06a44da74856f00ef4a9be85d1ba4806a38f1a
 
-CFLAGS="-Doutb_p=outb"
+post_extract() {
+	case "$XBPS_TARGET_MACHINE" in
+		*-musl) export CFLAGS+=" -Doutb_p=outb";;
+	esac
+}
 
 libieee1284-devel_package() {
 	depends="${sourcepkg}>=${version}_${revision}"