This article explores why there was no domino effect after Brexit and reflects on what this means for the health of European integration. It shows how the UK responded to the uncertainty surrounding the Article 50 talks by testing EU unity, prompting both sides to discuss a no-deal outcome. Evidence from Eurobarometer surveys demonstrates that attachment to the EU strengthened markedly during Brexit talks in the four countries considered most likely to flirt with leaving the EU. Hence Brexit changed the benchmarking process surrounding citizens’ evaluation of the prospects of getting a better deal outside the EU. Risk aversion thus explains the lack of a Brexit domino effect. However, the volatility of public opinion before and after the Article 50 talks, combined with the weaker increase in support over the EU as a whole, means there is no room for complacency over the future prospects of disintegration.