mysql syntax error

[gamma]

try this

$username = $_SESSION['username'];
echo $username;
$mysqlquery = mysql_query("SELECT * FROM members WHERE username='" . $username ."'");
$fetch_users_data = mysql_fetch_object($mysqlquery); 

Now it gives the error on line 5 ($fetch_users_data = mysql_fetch_object($mysqlquery);
)

I think the error is because of the function 'mysql_fetch_object' Any ideas?