diff --git a/scripts/signal-relay.py b/scripts/signal-relay.py
index d1805fc..dd16938 100755
--- a/scripts/signal-relay.py
+++ b/scripts/signal-relay.py
@@ -40,6 +40,7 @@ LISTEN_ADDR = ("192.168.0.143", 18093)
 # credential is the account state under ~/.local/share/signal-cli.
 SIGNAL_ACCOUNT = "+12062476336"
 SIGNAL_TO = "+12062476336"
+SIGNAL_CLI = "/usr/local/bin/signal-cli"
 
 # The relay is a safety net, not the rate limiter: Alertmanager already
 # repeats on repeat_interval. This suppresses exact duplicates that arrive