diff --git a/inc/hf/vcpu.h b/inc/hf/vcpu.h
index 85d4b9f..0c12324 100644
--- a/inc/hf/vcpu.h
+++ b/inc/hf/vcpu.h
@@ -270,7 +270,7 @@
 struct two_vcpu_locked vcpu_lock_both(struct vcpu *vcpu1, struct vcpu *vcpu2);
 void vcpu_unlock(struct vcpu_locked *locked);
 void vcpu_init(struct vcpu *vcpu, struct vm *vm);
-void vcpu_on(struct vcpu_locked vcpu, ipaddr_t entry, uintreg_t arg);
+void vcpu_prepare(struct vcpu_locked vcpu, ipaddr_t entry, uintreg_t arg);
 ffa_vcpu_index_t vcpu_index(const struct vcpu *vcpu);
 bool vcpu_is_off(struct vcpu_locked vcpu);
 bool vcpu_secondary_reset_and_start(struct vcpu_locked vcpu_locked,