diff --git a/jacobot/arduino/main.cpp b/jacobot/arduino/main.cpp
index 703fed5..9a04cd4 100644
--- a/jacobot/arduino/main.cpp
+++ b/jacobot/arduino/main.cpp
@@ -22,7 +22,7 @@
 
 #define LED_ORANGE 12
 
-#define SIZE = 500
+#define SIZE 500
 
 MotorEncoder m1(MLEFT_ENC_PIN_A, MLEFT_ENC_PIN_B, MLEFT_E_MOTOR, MLEFT_M_MOTOR, MLEFT_ORIENTATION, MLEFT_RATIO, MLEFT_RADIUS); // Initialise motor
 MotorEncoder m2(MRIGHT_ENC_PIN_A, MRIGHT_ENC_PIN_B, MRIGHT_E_MOTOR, MRIGHT_M_MOTOR, MRIGHT_ORIENTATION, MRIGHT_RATIO, MRIGHT_RADIUS); // Initialise motor with pins