diff --git a/Makefile b/Makefile
index 7ab43127..0786e943 100644
--- a/Makefile
+++ b/Makefile
@@ -3,4 +3,4 @@
 HOST :=  $(shell hostname)
 
 build:
-	nix build --keep-going .#nixosConfigurations.$(HOST).config.system.build.toplevel
+	nix build -j 1 --keep-going .#nixosConfigurations.$(HOST).config.system.build.toplevel