diff --git a/mkall.sh b/mkall.sh
index 1f8e74b3a..1a1347ebc 100755
--- a/mkall.sh
+++ b/mkall.sh
@@ -6,11 +6,11 @@ export ROOT_PATH=$PWD
 cd rtos
 source build/envsetup.sh
 lunch rtos cfg_565_HUNTING_EVB_LINUX_4G_S550 gcc-6.5-newlib-2.4-2019.11-arm-ca9-eabihf
-make all
+make all -j16 > /dev/null
 
 cd $ROOT_PATH
 source build/envsetup.sh
 lunch Linux cfg_565_HUNTING_EVB_LINUX_4G_S550 arm-ca9-linux-uclibcgnueabihf-8.4.01
-make all
+make all -j16 > /dev/null
 
 cd $ROOT_PATH