diff --git a/mm/vma_init.c b/mm/vma_init.c
index bbab1c8169851a..217eb675b43bf0 100644
--- a/mm/vma_init.c
+++ b/mm/vma_init.c
@@ -75,7 +75,7 @@ static void vm_area_init_from(const struct vm_area_struct *src,
 #ifdef __HAVE_PFNMAP_TRACKING
 	dest->pfnmap_track_ctx = NULL;
 #endif
-#ifdef CONFIG_CHERI_KERNEL
+#ifdef CONFIG_CHERI_PURECAP_UABI
 	if (reserv_is_supported(dest->vm_mm))
 		reserv_vma_set_reserv_data(dest, &src->reserv_data);
 #endif