diff --git a/include/io.h b/include/io.h
index a5ac84a..3239a25 100644
--- a/include/io.h
+++ b/include/io.h
@@ -4,7 +4,7 @@
 /* DS18B20+ is configured in DS18B20 library */
 
 /* Signal LED */
-#define LED_1 PD2
+#define LED_1 PD3
 
 /* Servo motors */
 #define SERVO_L_PIN PB1