Having trouble with an if statement

[bubulindo]

#include <stdlib.h>

int pot = 0, pot_before = 0; 

void loop(){
pot = analogRead(A1);

// Do your stuff here

if (abs(pot - pot_before) > 2) {
   //do what you want to do here if the difference is bigger than 2 
}

pot_before = pot;
}//end loop