diff --git a/testing/trayer/APKBUILD b/testing/trayer/APKBUILD
index 96512d062af..3943375108a 100644
--- a/testing/trayer/APKBUILD
+++ b/testing/trayer/APKBUILD
@@ -29,7 +29,7 @@ prepare() {
 
 build() {
 	cd "$_builddir"
-	make CFLAGS="${CFLAGS}" LDFLAGS="${LDFLAGS}"
+	make -j1 CFLAGS="${CFLAGS}" LDFLAGS="${LDFLAGS}"
 }
 
 package() {