define('_PRIME', 591623);
// Calculate "entropy" with the prime number (for code generation)
-define('_ADD', (_PRIME * _PRIME / (pi() * getConfig('code_length') + 1)));
+define('_ADD', (constant('_PRIME') * constant('_PRIME') / (pi() * getConfig('code_length') + 1)));
// Random number for e.g. the "cache-buster" used in OpenX script
define('CACHE_BUSTER', mt_rand(1000000, 9999999));