diff --git a/paddle/scripts/paddle_build.sh b/paddle/scripts/paddle_build.sh
index 3519d64489a9d2da85d5cbaaebd03955feb7dede..60f8d37daf664048234d21bcd658ea195e403a32 100755
--- a/paddle/scripts/paddle_build.sh
+++ b/paddle/scripts/paddle_build.sh
@@ -296,7 +296,7 @@ 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