diff --git a/xen/arch/arm/altp2m.c b/xen/arch/arm/altp2m.c
index 3230370..4a51a6c 100644
--- a/xen/arch/arm/altp2m.c
+++ b/xen/arch/arm/altp2m.c
@@ -500,7 +500,7 @@ int altp2m_init_next_available(struct domain *d, uint16_t *idx)
 int altp2m_init(struct domain *d)
 {
     spin_lock_init(&d->arch.altp2m_lock);
-    d->arch.altp2m_active = false;
+    d->arch.altp2m_active = true;

     return 0;
 }