diff --git a/device/testing/linux-gp-peak/APKBUILD b/device/testing/linux-gp-peak/APKBUILD
index 9c48298e7..91f9e8678 100644
--- a/device/testing/linux-gp-peak/APKBUILD
+++ b/device/testing/linux-gp-peak/APKBUILD
@@ -33,6 +33,7 @@ source="
 	01_timeconst_fix.patch
 "
 builddir="$srcdir/$_repository-$_commit"
+_outdir="out"
 
 prepare() {
 	default_prepare
@@ -48,11 +49,11 @@ build() {
 
 package() {
 	# kernel.release
-	install -D "$builddir/out/include/config/kernel.release" \
+	install -D "$builddir/$_outdir/include/config/kernel.release" \
 		"$pkgdir/usr/share/kernel/$_flavor/kernel.release"
 
 	# zImage (find the right one)
-	cd "$builddir/out/arch/$_carch/boot"
+	cd "$builddir/$_outdir/arch/$_carch/boot"
 	_target="$pkgdir/boot/vmlinuz-$_flavor"
 	for _zimg in zImage-dtb Image.gz-dtb *zImage Image; do
 		[ -e "$_zimg" ] || continue