diff --git a/systemd.service b/systemd.service
index 5be415d7..eff77d3a 100644
--- a/systemd.service
+++ b/systemd.service
@@ -8,7 +8,7 @@ User=MAKEFILE_USER
 ExecStart=MAKEFILE_EXEC
 WorkingDirectory=MAKEFILE_PWD
 Restart=on-failure
-Nice=-20
+Nice=-19
 CPUSchedulingPolicy=fifo
 CPUSchedulingPriority=99
 IOSchedulingClass=realtime