diff --git a/cores/esp32/esp32-hal-gpio.c b/cores/esp32/esp32-hal-gpio.c
index c681be077b3..90ad1e7f36d 100644
--- a/cores/esp32/esp32-hal-gpio.c
+++ b/cores/esp32/esp32-hal-gpio.c
@@ -185,7 +185,7 @@ extern int ARDUINO_ISR_ATTR __digitalRead(uint8_t pin) {
 #endif  // RGB_BUILTIN
   // This work when the pin is set as GPIO and in INPUT mode. For all other pin functions, it may return inconsistent response
   if (perimanGetPinBus(pin, ESP32_BUS_TYPE_GPIO) == NULL) {
-    log_w("IO %i is not set as GPIO. digitalRead() may return an inconsistent value.");
+    log_w("IO %i is not set as GPIO. digitalRead() may return an inconsistent value.", pin);
   }
   return gpio_get_level((gpio_num_t)pin);
 }