diff --git a/chromium.spec b/chromium.spec
index 4370a44..e4b9fc7 100644
--- a/chromium.spec
+++ b/chromium.spec
@@ -7,7 +7,7 @@
 
 # This flag is so I can build things very fast on a giant system.
 # Do not enable in Koji builds.
-%global use_all_cpus 1
+%global use_all_cpus 0
 
 %if %{use_all_cpus}
 %global numjobs %{_smp_build_ncpus}