diff --git a/paddle/scripts/paddle_build.sh b/paddle/scripts/paddle_build.sh
index 7aa85ab137ed83da11e317b020d577f76588cc4c..594c98e7fe39d580eb42b6104e37a40c1ecc2e71 100755
--- a/paddle/scripts/paddle_build.sh
+++ b/paddle/scripts/paddle_build.sh
@@ -300,7 +300,7 @@ function check_style() {
 function build_base() {
     if [ "$SYSTEM" == "Linux" ];then
       if [ `nproc` -gt 16 ];then
-          parallel_number=$(expr `nproc` - 4)
+          parallel_number=$(expr `nproc` - 8)
       else
           parallel_number=`nproc`
       fi