diff --git a/update b/update
index 9f0473a1..664ac0cc 100755
--- a/update
+++ b/update
@@ -295,7 +295,7 @@ if [[ $(grep 'changed' /home/pi/MPU6050-C-CPP-Library-for-Raspberry-Pi/.updated_
 	echo "updating MPU6050-C-CPP-Library-for-Raspberry-Pi"
 	sudo make install
 	make example
-	g++ mpu6050.cpp -o mpu6050 -lMPU6050 -pthread
+	g++ mpu6050.cpp -o mpu6050 -lMPU6050 -pthread -li2c
 
 else
 	echo "nothing to do for MPU6050-C-CPP-Library-for-Raspberry-Pi."