diff --git a/dotfiles/systemd/redshift.service b/dotfiles/systemd/redshift.service
index 51860dc..9cc7793 100644
--- a/dotfiles/systemd/redshift.service
+++ b/dotfiles/systemd/redshift.service
@@ -1,6 +1,7 @@
 [Unit]
 Description=Time-based display color temperature adjustment
 PartOf=graphical-session.target
+ConditionHost=!wally
 
 [Service]
 ExecStart=/usr/bin/redshift -l manual:lon=2.35:lat=48.87 -t 6500:3900