diff --git a/Formula/ninvaders.rb b/Formula/ninvaders.rb
index 52bd0361fa..2796cdc326 100644
--- a/Formula/ninvaders.rb
+++ b/Formula/ninvaders.rb
@@ -12,7 +12,7 @@ class Ninvaders < Formula
   end
 
   def install
-    ENV.j1 # this formula's build system can't parallelize
+    ENV.deparallelize # this formula's build system can't parallelize
     inreplace "Makefile" do |s|
       s.change_make_var! "CC", ENV.cc
       # gcc-4.2 doesn't like the lack of space here