diff --git a/ansible/roles/pihole/files/setup-vars.conf b/ansible/roles/pihole/files/setup-vars.conf
index fa512b0..7ebd0de 100644
--- a/ansible/roles/pihole/files/setup-vars.conf
+++ b/ansible/roles/pihole/files/setup-vars.conf
@@ -31,3 +31,4 @@ PIHOLE_DNS_9=9.9.9.11
 PIHOLE_DNS_10=149.112.112.11
 PIHOLE_DNS_11=2620:fe::11
 PIHOLE_DNS_12=2620:fe::fe:11
+TEMPERATUREUNIT=C