diff --git a/ingest/src/server_iot.rs b/ingest/src/server_iot.rs
index 7f431d511..737d3254d 100644
--- a/ingest/src/server_iot.rs
+++ b/ingest/src/server_iot.rs
@@ -372,7 +372,6 @@ pub async fn grpc_server(settings: &Settings) -> Result<()> {
     .create()
     .await?;
 
-    let grpc_addr = settings.listen;
     let grpc_server = GrpcServer {
         beacon_report_sink,
         witness_report_sink,
diff --git a/ingest/src/server_mobile.rs b/ingest/src/server_mobile.rs
index c8a2e1d11..60ac67b34 100644
--- a/ingest/src/server_mobile.rs
+++ b/ingest/src/server_mobile.rs
@@ -449,7 +449,6 @@ pub async fn grpc_server(settings: &Settings) -> Result<()> {
         bail!("expected valid api token in settings");
     };
 
-    let grpc_addr = settings.listen;
     let grpc_server = GrpcServer {
         heartbeat_report_sink,
         wifi_heartbeat_report_sink,
diff --git a/iot_config/src/settings.rs b/iot_config/src/settings.rs
index 45b41844d..ebf3c3dbf 100644
--- a/iot_config/src/settings.rs
+++ b/iot_config/src/settings.rs
@@ -1,7 +1,7 @@
 use config::{Config, Environment, File};
 use humantime_serde::re::humantime;
 use serde::Deserialize;
-use std::{net::SocketAddr, path::Path, str::FromStr};
+use std::{net::SocketAddr, path::Path, str::FromStr, time::Duration};
 
 #[derive(Debug, Deserialize)]
 pub struct Settings {