diff --git a/build.sh b/build.sh
index 17935f3968..cd8b5e9f86 100755
--- a/build.sh
+++ b/build.sh
@@ -13,4 +13,4 @@ rm -f config.status
 # CFLAGS="-O2" ./configure
 ./configure.sh
 
-make -j 4
+make -j $(nproc)