diff --git a/Ports/llvm/package.sh b/Ports/llvm/package.sh
index 6f7e8e768a4..85eea0bb931 100755
--- a/Ports/llvm/package.sh
+++ b/Ports/llvm/package.sh
@@ -50,7 +50,7 @@ configure() {
 }
 
 build() {
-    ninja -C llvm-build
+    ninja -j${MAKEJOBS} -C llvm-build
 }
 
 install() {