diff --git a/misc/systemd/nix-daemon.service.in b/misc/systemd/nix-daemon.service.in
index 5fc04a3f5..fcd799e17 100644
--- a/misc/systemd/nix-daemon.service.in
+++ b/misc/systemd/nix-daemon.service.in
@@ -7,3 +7,4 @@ ConditionPathIsReadWrite=@localstatedir@/nix/daemon-socket
 [Service]
 ExecStart=@@bindir@/nix-daemon nix-daemon --daemon
 KillMode=process
+Environment=XDG_CACHE_HOME=/root/.cache