diff --git a/ros_arduino_firmware/src/libraries/ROSArduinoBridge/motor_driver.ino b/ros_arduino_firmware/src/libraries/ROSArduinoBridge/motor_driver.ino
index c822ef5..27c76bc 100644
--- a/ros_arduino_firmware/src/libraries/ROSArduinoBridge/motor_driver.ino
+++ b/ros_arduino_firmware/src/libraries/ROSArduinoBridge/motor_driver.ino
@@ -9,7 +9,7 @@
 
 #ifdef USE_BASE
    
-#if defined POLOLU_VNH5019
+#ifdef POLOLU_VNH5019
   /* Include the Pololu library */
   #include "DualVNH5019MotorShield.h"