diff --git a/update b/update
index dbaa227c..0360fc0c 100755
--- a/update
+++ b/update
@@ -283,7 +283,7 @@ if [ ! -f "/home/pi/MPU6050-C-CPP-Library-for-Raspberry-Pi" ]; then
 	cd MPU6050-C-CPP-Library-for-Raspberry-Pi
 	sudo make install
 	make example
-    g++ mpu6050.o -o mpu6050 -lMPU6050 -pthread
+    g++ mpu6050.cpp -o mpu6050 -lMPU6050 -pthread
 fi
 
 cd /home/pi/MPU6050-C-CPP-Library-for-Raspberry-Pi
@@ -296,7 +296,7 @@ git pull --no-rebase > .updated_p
     echo "updating MPU6050-C-CPP-Library-for-Raspberry-Pi"
     sudo make install
 	make example
-	g++ mpu6050.o -o mpu6050 -lMPU6050 -pthread
+	g++ mpu6050.cpp -o mpu6050 -lMPU6050 -pthread
 
   else
     echo "nothing to do for MPU6050-C-CPP-Library-for-Raspberry-Pi."