In the article Spatial Structure Can Decrease Symbiotic Cooperation by Anya E. Vostinar and Charles Ofria in Artificial Life 24:4, 2018, incorrect parameter values were reported. The amount of resources introduced into a host at every update was actually 100 (incorrectly reported as 25), the amount of resources required for host reproduction was actually 1000 (incorrectly reported as 100), and the amount of resources required for symbiont reproduction was actually 100 (incorrectly reported as 50).