Stuck in Codecademy's Javascript fizzbuzz app

Here are Codecademy's instructions:

Print out the numbers from 1 - 20.

For numbers divisible by 3, print out "Fizz".

For numbers divisible by 5, print out "Buzz".

For numbers divisible by both 3 and 5, print out "FizzBuzz" in the console.

Otherwise, just print out the number.

And here is my code:

for (i = 1; i <= 20; i++) {
    if (i % 3 == 0) {
    console.log("Fizz");
    }
    else if (i % 5 == 0) {
    console.log("Buzz");    
    }
    else if (i % 3 == 0 && i % 5 == 0) {
    console.log("FizzBuzz");
    }
    else {
    console.log(i);    
    }
}

The problem is that it won't print "FizzBuzz"..for the number 15 it just prints "Fizz" when it should print "FizzBuzz"..

What am I missing here?