This paper investigates the effects of the migration crisis of 2015 on Polish attitudes to the European Union. Superficially, there seems to have been no significant impact: even though the migration crisis resulted in hitherto unprecedented tensions between Poland and the EU, as well as a robust anti-immigrant turn in Polish public opinion, this crisis had little or no effect on the standard survey gauges of EU favorability in Poland. However, based on a comparison between the results of pre- and post-crisis Eurobarometer surveys (EB82.3 and EB87.3), our analysis demonstrates that while the overall perception of the EU became only slightly less favorable between 2014 and 2017, a substantial shift in the structure of public opinion did occur. Concerns over immigration were not associated with perception of the EU before the crisis but became dominant predictors after 2015.