The present research explores the role of inhibitory control (IC) in young preschoolers' pretense ability using an ego depletion paradigm. In Experiment 1 (N = 56), children's pretense ability was assessed either before or after participating in conflict IC or control tasks, and in Experiment 2 (N = 36), pretense ability was measured after children engaged in either conflict or delay IC tasks. In both experiments, pretense scores were significantly higher only after engaging in conflict IC tasks. Further, pretense scores were positively correlated with IC scores when conflict IC was "not" experienced first. This pattern of results suggests that IC may underlie pretense, and conflict IC can boost the quality of children's subsequent pretending.