diff --git a/variants/AirM2M_CORE_ESP32C3/pins_arduino.h b/variants/AirM2M_CORE_ESP32C3/pins_arduino.h
index af061a0eee212c0fbc6ced5158d480c9ee8d6e5b..4af6c1d87cd21d17296d0200e8d0fa12b792b24d 100644
--- a/variants/AirM2M_CORE_ESP32C3/pins_arduino.h
+++ b/variants/AirM2M_CORE_ESP32C3/pins_arduino.h
@@ -11,6 +11,10 @@
 #define digitalPinToInterrupt(p)    (((p)<NUM_DIGITAL_PINS)?(p):-1)
 #define digitalPinHasPWM(p)         (p < EXTERNAL_NUM_INTERRUPTS)
 
+static const uint8_t LED_BUILTIN     = 12;
+#define BUILTIN_LED  LED_BUILTIN
+static const uint8_t LED_BUILTIN_AUX = 13;
+
 static const uint8_t TX = 21;
 static const uint8_t RX = 20;
 
diff --git a/variants/AirM2M_CORE_ESP32C3/variant.cpp b/variants/AirM2M_CORE_ESP32C3/variant.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..e7c8670a042fa9c2130d9e7cdc1b5567b6607830
--- /dev/null
+++ b/variants/AirM2M_CORE_ESP32C3/variant.cpp
@@ -0,0 +1,7 @@
+#include "Arduino.h"
+
+extern "C" void initVariant(void){
+	// Stop LEDs floating
+	pinMode(LED_BUILTIN, OUTPUT); digitalWrite(LED_BUILTIN, LOW);
+	pinMode(LED_BUILTIN_AUX, OUTPUT); digitalWrite(LED_BUILTIN_AUX, LOW);
+}
\ No newline at end of file