A debate has emerged whether countries with Muslim majorities are intrinsically more likely to be autocratic. Recent studies have traced this to the allegedly repressive nature of Islam. This article replicates the most recent study on this topic, published in Public Choice (Potrafke in Public Choice 151:185–192, 2012), and demonstrates that the effect is not robust to a number of sensible alterations to the statistical specification. The effect between Islam and democracy is spurious. There is no causal relationship between Islam and democracy.