Error querying the database!

1. Check the input for invalid characters...
   This is the query class tried to execute: SELECT *, t.id AS id FROM socio_topics t LEFT JOIN socio_sources s ON t.sourceID = s.id WHERE t.id = muay thai
   This is the error message returned by MySql: 1064: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'thai' at line 1