diff --git a/examples/Hat/ToF_VL53L0X/ToF_VL53L0X.ino b/examples/Hat/ToF_VL53L0X/ToF_VL53L0X.ino
index fcefce7..55777e8 100644
--- a/examples/Hat/ToF_VL53L0X/ToF_VL53L0X.ino
+++ b/examples/Hat/ToF_VL53L0X/ToF_VL53L0X.ino
@@ -15,7 +15,7 @@ byte gbuf[16];
 
 void setup() {
   // put your setup code here, to run once:
-  Wire.begin(0, 26, 400000);// join i2c bus (address optional for master)
+  Wire.begin(0, 26, 400000UL);// join i2c bus (address optional for master)
   Serial.begin(115200);  // start serial for output
   Serial.println("VLX53LOX test started.");