Tunisia’s parliament has approved a law to fight widespread corruption that has plagued the North African country’s economy since the 2011 revolution.

145 lawmakers out of 217 voted to pass the law, which criminalises any retribution against whistleblowers including any disciplinary measures against civil servants.

Experts say petty graft has hampered Tunisia’s economy since anti-corruption protests sparked the fall of longtime President Zine El Abidine Ben Ali six years ago.

At least $230m in bribes were slipped to state employees in 2013 alone.

Tunisia was ranked 75th in the 2016 corruption index published by Transparency International.