I'm not 100% sure, (I'm a newbie!) but please try p : Patient() eval( p.getFumeurPetit().equals("vrai") ) Ji Oh -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/string-comparison-tp1768776p1778234.html Sent from the Drools - User mailing list archive at Nabble.com.