diff --git a/paddle/scripts/paddle_build.sh b/paddle/scripts/paddle_build.sh
index 1c35665d7191f8d5b4b71b2c890b89fce078232a..95112343477ad626a3f5a8c9541bc2a23d297745 100755
--- a/paddle/scripts/paddle_build.sh
+++ b/paddle/scripts/paddle_build.sh
@@ -292,13 +292,17 @@ function check_style() {
 #=================================================
 
 function build_base() {
-    parallel_number=`nproc`
-    if [[ "$1" != "" ]]; then
+    if [ "$SYSTEM" == "Linux" ];then
+      parallel_number=`nproc`
+    else
+      parallel_number=8
+    fi
+    if [ "$1" != "" ]; then
       parallel_number=$1
     fi
     make clean
     make -j ${parallel_number}
-    make install -j `nproc`
+    make install -j ${parallel_number} 
 }