Ectothermic animals normally use behaviour to thermoregulate when temperatures fall outside their preferred range. Thus, exposure to stressful temperatures often generates an evasion response. We mesured the Voluntary Thermal Maximum (VTMax) of two individuals of Amphisbaena alba from a savanna locality in Brazil. Our observations show that A. alba is most likely a thigmothermic animal, thermoregulating by direct contact with the soil. Our results provide baseline for further studies on mechanistic models of distribution that take into account behavioral thermal limits.