diff --git a/etc/iwd/main.conf b/etc/iwd/main.conf
index 55be141c..40e77e7c 100644
--- a/etc/iwd/main.conf
+++ b/etc/iwd/main.conf
@@ -1,4 +1,7 @@
 [General]
+# Request setting regulatory domain. ISO-Alpha-2
+# Check with `iw reg get`. Lumina said phy0 DE before setting this.
+Country=FI
 # legacy compatibility, at least on Lumina?
 use_default_interface=true
 # build-in DHCP client