diff --git a/testing/pspp/APKBUILD b/testing/pspp/APKBUILD
index aedd496b70183f4fc0c0afaa397a306a7d6a2e13..1697d461ff1b82a3a1467d9d631e130e720e872b 100644
--- a/testing/pspp/APKBUILD
+++ b/testing/pspp/APKBUILD
@@ -25,6 +25,11 @@ makedepends="
 	spread-sheet-widget-dev
 	zlib-dev
 	"
+prepare() {
+	default_prepare
+	# recognize loongarch64-alpine-linux-musl
+	update_config_sub
+}
 
 build() {
 	./configure \