This study explores the relationship between value co-creation (VCC), guests' perceived justice and guests' enjoyment. Cognitive appraisal theory and justice theory are used to explain these relationships. Different dimensions of VCC such as knowledge sharing, equity, interaction, personalization, experience and relationship are investigated in this study. Partial least square Structural equation modeling (PLS-SEM) was used to test the hypotheses using data from 365 hotel guests recruited through Prolific. VCC has a positive relationship with guests' enjoyment through two mediators, the perceived distributive and the interactional justice. This study contributes to the literature of VCC by proposing justice theory as a cognitive process that can partially explain guests' enjoyment when they adopt an active 'working' role to undertake value-creating activities.