diff --git a/build/make-game-script.txt b/build/make-game-script.txt
index 082d48c4..a4bf2fb6 100644
--- a/build/make-game-script.txt
+++ b/build/make-game-script.txt
@@ -1,2 +1,2 @@
 cd src
-make -f zmr-games.mak
+make -j $(nproc) -f zmr-games.mak