diff --git a/mkuboot.sh b/mkuboot.sh
index 82a18d413b13954daa299a1d5ac304ac94ac169e..be35f5d8fed8877b020c0c54b729faeff4449e4f 100755
--- a/mkuboot.sh
+++ b/mkuboot.sh
@@ -14,7 +14,7 @@ cp mntreform-config .config
 
 export CROSS_COMPILE=aarch64-linux-gnu-
 export ARCH=arm
-make -j16 flash.bin
+make -j$(nproc) flash.bin
 
 cd ..