diff --git a/Cargo.lock b/Cargo.lock
index 612faa2..f0174e4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -204,6 +204,7 @@ dependencies = [
  "dotenv",
  "handlebars",
  "hex",
+ "humantime-serde",
  "log",
  "lrwn_filters",
  "once_cell",
@@ -703,6 +704,22 @@ version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d897f394bad6a705d5f4104762e116a75639e470d80901eed05a860a95cb1904"
 
+[[package]]
+name = "humantime"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
+
+[[package]]
+name = "humantime-serde"
+version = "1.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57a3db5ea5923d99402c94e9feb261dc5ee9b4efa158b0315f788cf549cc200c"
+dependencies = [
+ "humantime",
+ "serde",
+]
+
 [[package]]
 name = "iana-time-zone"
 version = "0.1.60"
diff --git a/Cargo.toml b/Cargo.toml
index e169885..28f8530 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,6 +22,7 @@
   lrwn_filters = { version = "4.7", features = ["serde"] }
   serde_json = "1.0"
   serde = { version = "1.0", features = ["derive"] }
+  humantime-serde = "1.1"
   log = "0.4"
   simple_logger = "4.3"
   syslog = "6.1"
diff --git a/src/cmd/configfile.rs b/src/cmd/configfile.rs
index da8dfea..d174981 100644
--- a/src/cmd/configfile.rs
+++ b/src/cmd/configfile.rs
@@ -81,6 +81,12 @@ pub fn run(config: &Configuration) {
   # a random id will be generated by ChirpStack.
   client_id="{{ mqtt.client_id }}"
 
+  # Keep alive interval.
+  #
+  # This defines the maximum time that that should pass without communication
+  # between the client and server.
+  keep_alive_interval="{{ integration.mqtt.keep_alive_interval }}"
+
   # CA certificate file (optional)
   #
   # Use this when setting up a secure connection (when server uses ssl://...)
diff --git a/src/config.rs b/src/config.rs
index f5305c9..cf605bc 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -1,5 +1,6 @@
 use std::collections::HashMap;
 use std::fs;
+use std::time::Duration;
 
 use anyhow::Result;
 use serde::{Deserialize, Serialize};
@@ -52,6 +53,8 @@ pub struct Mqtt {
     pub qos: u8,
     pub clean_session: bool,
     pub client_id: String,
+    #[serde(with = "humantime_serde")]
+    pub keep_alive_interval: Duration,
     pub ca_cert: String,
     pub tls_cert: String,
     pub tls_key: String,
@@ -68,6 +71,7 @@ impl Default for Mqtt {
             qos: 0,
             clean_session: false,
             client_id: "".into(),
+            keep_alive_interval: Duration::from_secs(30),
             ca_cert: "".into(),
             tls_cert: "".into(),
             tls_key: "".into(),
diff --git a/src/mqtt.rs b/src/mqtt.rs
index e0559d9..2ebedc2 100644
--- a/src/mqtt.rs
+++ b/src/mqtt.rs
@@ -141,6 +141,7 @@ pub async fn setup(conf: &Configuration) -> Result<()> {
 
     mqtt_opts.set_last_will(lwt_msg);
     mqtt_opts.set_clean_start(conf.mqtt.clean_session);
+    mqtt_opts.set_keep_alive(conf.mqtt.keep_alive_interval);
     if !conf.mqtt.username.is_empty() || !conf.mqtt.password.is_empty() {
         mqtt_opts.set_credentials(&conf.mqtt.username, &conf.mqtt.password);
     }