diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index dc58741..b11b3f6 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -30,3 +30,13 @@ repos:
     rev: v0.1.0
     hooks:
       - id: dockerfilelint
+
+  - repo: local
+    hooks:
+      - id: lua-definitions
+        name: Generate lua definitions
+        description: This hook generates up to date lua definitions.
+        entry: cargo run --bin generate_definitions
+        language: system
+        types: [rust]
+        pass_filenames: false
diff --git a/definitions/generated.lua b/definitions/generated.lua
index aea344e..7f5a037 100644
--- a/definitions/generated.lua
+++ b/definitions/generated.lua
@@ -181,3 +181,4 @@ function Washer.new(config) end
 --- @field event_channel EventChannel
 --- @field client WrappedAsyncClient
 
+-- End of generated file
diff --git a/src/bin/generate_definitions.rs b/src/bin/generate_definitions.rs
index 8ea743b..8f0afab 100644
--- a/src/bin/generate_definitions.rs
+++ b/src/bin/generate_definitions.rs
@@ -1,3 +1,6 @@
+use std::fs::File;
+use std::io::{Result, Write};
+
 use automation::config::MqttDeviceConfig;
 use automation::devices::{
     AirFilter, AirFilterConfig, AudioSetup, AudioSetupConfig, ContactSensor, ContactSensorConfig,
@@ -7,51 +10,64 @@ use automation::devices::{
     WakeOnLANConfig, Washer, WasherConfig,
 };
 
-fn main() {
-    println!("-- WARN: This file is automatically generated, do not manually edit\n");
-    println!("---@meta");
+fn main() -> Result<()> {
+    let mut d = File::create("./definitions/generated.lua")?;
 
-    println!("{}", MqttDeviceConfig::generate_lua_definition());
+    writeln!(
+        &mut d,
+        "-- WARN: This file is automatically generated, do not manually edit\n"
+    )?;
+    writeln!(&mut d, "---@meta")?;
 
-    println!("{}", AirFilter::generate_lua_definition());
-    println!("{}", AirFilterConfig::generate_lua_definition());
+    writeln!(&mut d, "{}", MqttDeviceConfig::generate_lua_definition())?;
 
-    println!("{}", AudioSetup::generate_lua_definition());
-    println!("{}", AudioSetupConfig::generate_lua_definition());
+    writeln!(&mut d, "{}", AirFilter::generate_lua_definition())?;
+    writeln!(&mut d, "{}", AirFilterConfig::generate_lua_definition())?;
 
-    println!("{}", ContactSensor::generate_lua_definition());
-    println!("{}", ContactSensorConfig::generate_lua_definition());
-    println!("{}", PresenceDeviceConfig::generate_lua_definition());
-    println!("{}", TriggerConfig::generate_lua_definition());
+    writeln!(&mut d, "{}", AudioSetup::generate_lua_definition())?;
+    writeln!(&mut d, "{}", AudioSetupConfig::generate_lua_definition())?;
 
-    println!("{}", DebugBridge::generate_lua_definition());
-    println!("{}", DebugBridgeConfig::generate_lua_definition());
+    writeln!(&mut d, "{}", ContactSensor::generate_lua_definition())?;
+    writeln!(&mut d, "{}", ContactSensorConfig::generate_lua_definition())?;
+    writeln!(
+        &mut d,
+        "{}",
+        PresenceDeviceConfig::generate_lua_definition()
+    )?;
+    writeln!(&mut d, "{}", TriggerConfig::generate_lua_definition())?;
 
-    println!("{}", HueBridge::generate_lua_definition());
-    println!("{}", HueBridgeConfig::generate_lua_definition());
-    println!("{}", FlagIDs::generate_lua_definition());
+    writeln!(&mut d, "{}", DebugBridge::generate_lua_definition())?;
+    writeln!(&mut d, "{}", DebugBridgeConfig::generate_lua_definition())?;
 
-    println!("{}", HueGroup::generate_lua_definition());
-    println!("{}", HueGroupConfig::generate_lua_definition());
+    writeln!(&mut d, "{}", HueBridge::generate_lua_definition())?;
+    writeln!(&mut d, "{}", HueBridgeConfig::generate_lua_definition())?;
+    writeln!(&mut d, "{}", FlagIDs::generate_lua_definition())?;
 
-    println!("{}", IkeaOutlet::generate_lua_definition());
-    println!("{}", IkeaOutletConfig::generate_lua_definition());
+    writeln!(&mut d, "{}", HueGroup::generate_lua_definition())?;
+    writeln!(&mut d, "{}", HueGroupConfig::generate_lua_definition())?;
 
-    println!("{}", KasaOutlet::generate_lua_definition());
-    println!("{}", KasaOutletConfig::generate_lua_definition());
+    writeln!(&mut d, "{}", IkeaOutlet::generate_lua_definition())?;
+    writeln!(&mut d, "{}", IkeaOutletConfig::generate_lua_definition())?;
 
-    println!("{}", LightSensor::generate_lua_definition());
-    println!("{}", LightSensorConfig::generate_lua_definition());
+    writeln!(&mut d, "{}", KasaOutlet::generate_lua_definition())?;
+    writeln!(&mut d, "{}", KasaOutletConfig::generate_lua_definition())?;
 
-    println!("{}", Ntfy::generate_lua_definition());
-    println!("{}", NtfyConfig::generate_lua_definition());
+    writeln!(&mut d, "{}", LightSensor::generate_lua_definition())?;
+    writeln!(&mut d, "{}", LightSensorConfig::generate_lua_definition())?;
 
-    println!("{}", Presence::generate_lua_definition());
-    println!("{}", PresenceConfig::generate_lua_definition());
+    writeln!(&mut d, "{}", Ntfy::generate_lua_definition())?;
+    writeln!(&mut d, "{}", NtfyConfig::generate_lua_definition())?;
 
-    println!("{}", WakeOnLAN::generate_lua_definition());
-    println!("{}", WakeOnLANConfig::generate_lua_definition());
+    writeln!(&mut d, "{}", Presence::generate_lua_definition())?;
+    writeln!(&mut d, "{}", PresenceConfig::generate_lua_definition())?;
 
-    println!("{}", Washer::generate_lua_definition());
-    println!("{}", WasherConfig::generate_lua_definition());
+    writeln!(&mut d, "{}", WakeOnLAN::generate_lua_definition())?;
+    writeln!(&mut d, "{}", WakeOnLANConfig::generate_lua_definition())?;
+
+    writeln!(&mut d, "{}", Washer::generate_lua_definition())?;
+    writeln!(&mut d, "{}", WasherConfig::generate_lua_definition())?;
+
+    writeln!(&mut d, "-- End of generated file")?;
+
+    Ok(())
 }