diff --git a/things/DeviceDht.h b/things/DeviceDht.h
index 1d09e3b..bfd795f 100644
--- a/things/DeviceDht.h
+++ b/things/DeviceDht.h
@@ -2,7 +2,7 @@
 
 #include "Device.h"
 #include <Homie.h>
-#include <DHT.h>    // https://github.com/adafruit/DHT-sensor-library
+#include <DHT.h> // https://github.com/adafruit/DHT-sensor-library
 
 class DeviceDht : public Device {
   public:
diff --git a/things/DeviceIrRx.h b/things/DeviceIrRx.h
index 93597be..4f4e179 100644
--- a/things/DeviceIrRx.h
+++ b/things/DeviceIrRx.h
@@ -2,7 +2,7 @@
 
 #include "Device.h"
 #include <Homie.h>
-#include <IRremoteESP8266.h>
+#include <IRremoteESP8266.h> // https://github.com/markszabo/IRremoteESP8266
 
 class DeviceIrRx : public Device {
   public:
diff --git a/things/DeviceIrTx.h b/things/DeviceIrTx.h
index e23a830..5f1eec7 100644
--- a/things/DeviceIrTx.h
+++ b/things/DeviceIrTx.h
@@ -2,7 +2,7 @@
 
 #include "Device.h"
 #include <Homie.h>
-#include <IRremoteESP8266.h>
+#include <IRremoteESP8266.h> // https://github.com/markszabo/IRremoteESP8266
 
 class DeviceIrTx : public Device {
   public:
diff --git a/things/things.ino b/things/things.ino
index 85c8b1d..3e384cd 100644
--- a/things/things.ino
+++ b/things/things.ino
@@ -1,4 +1,4 @@
-#include <Homie.h>  // https://github.com/marvinroger/homie-esp8266
+#include <Homie.h> // https://github.com/marvinroger/homie-esp8266
 
 #include "DeviceLed.h"
 #include "DeviceLdr.h"