There are both negative and positive stereotypes about public sector workers. Most studies focus on negative stereotypes, like the idea that public servants are lazy. We, however, do the opposite. We focus on a positive stereotype: public sector workers are seen as caring and helpful. We test the effects of positive stereotypes on the quality of public service delivery. Using a pre-registered audit experiment in elderly care in the Netherlands and Belgium, we find that activating a pro-social stereotype does not affect the outcome of public service quality in terms of response rate and information provision. However, it does improve the bureaucratic process: public sector workers are friendlier toward citizens. They say around 12% more ‘thank you’ in their replies. Moreover, the citizens’ gender affects the response rate: female citizens receive around 10% more replies. Concluding, we show that positive stereotyping can improve parts of the quality of public service delivery but not all.