Purpose: The purpose of this study was to investigate attractiveness of internship advertisements to the prospective applicants through the lens of employer branding. By giving attention to internship attractiveness, universities and companies expand current collaborations around internship provision to enhance student internship experiences, satisfaction and employment prospects and to foster long-term sustainability of internship programs. Design/methodology/approach: The study used a mixed-methods design employing a concurrent triangulation strategy. The authors conducted a content analysis of 94 internship listings published in the largest Russian job portal, HeadHunter, and collected surveys from 274 prospective interns. Findings: The study shows a mismatch between employer branding strategies and prospective interns' perceptions of employer attractiveness. Companies emphasize economic value and visual identity as well as functional attributes, while prospective interns prioritize development value and symbolic attributes. The findings suggest internship advertisements do not appeal to potential applicants. Research limitations/implications: The results are limited to business students from specific universities in Russia, so further research is needed to include students with different majors and from other countries. The study is also limited to advertisements available via a large online job portal. A comparative analysis of effectiveness of various communication channels for internship promotion could yield useful results. Practical implications: Career center advisors, academic program directors and internship coordinators should work with company leaders, human resources and marketing decision-makers, and recruitment specialists to better understand interns' drivers of attraction and audit the internship advertisements. Employers could use the study results to strengthen recruiting messages and, hence, attractiveness of the employer brand to potential interns. Originality/value: The study contributes by applying the employer branding theory to an understudied population of interns, hence providing new insights into internships as collaboration between universities and companies. By focusing on internship positions, which differ from full-time permanent positions across many aspects, including the positions' duration, pay, supervision and purpose, the study assists in understanding the distinct drivers of attraction of interns, which are missing from published research on the topic. [ABSTRACT FROM AUTHOR]