Since the 9/11 terrorist attacks, there has been considerable concern about whether Muslims living in Western countries are targets of prejudice. A considerable amount of survey-based evidence suggests that Muslims are victims of discrimination. This paper tested this hypothesis. Two lost-letter experiments were conducted to test whether the difference in returned letters would be attributable to whether the addressee was Muslim or Swedish. The results show that Muslims receive far fewer letters than do Swedes. However, this discrimination only appears when the lost letters contain money; in which case, the finder gains by not posting the letter.