diff --git a/Adafruit_I2CDevice.cpp b/Adafruit_I2CDevice.cpp
index 19b0139..e95bb40 100644
--- a/Adafruit_I2CDevice.cpp
+++ b/Adafruit_I2CDevice.cpp
@@ -13,6 +13,8 @@ Adafruit_I2CDevice::Adafruit_I2CDevice(uint8_t addr, TwoWire *theWire) {
   _begun = false;
 #ifdef ARDUINO_ARCH_SAMD
   _maxBufferSize = 250; // as defined in Wire.h's RingBuffer
+#elif defined(ESP32)
+  _maxBufferSize = I2C_BUFFER_LENGTH;
 #else
   _maxBufferSize = 32;
 #endif