diff --git a/vm/page.c b/vm/page.c
index 08b4f8c..be884a5 100644
--- a/vm/page.c
+++ b/vm/page.c
@@ -68,6 +68,8 @@ vm_page_t *vm_page_get(phys_addr_t addr)
 	switch (vm_memory_model()) {
 	case VM_MODEL_FLAT:
 		return vm_page_get_flat(addr);
+	case VM_MODEL_SPARSE:
+		return vm_page_get_sparse(addr);
 	default:
 		return NULL;
 	}
@@ -88,6 +90,8 @@ size_t vm_page_get_pfn(vm_page_t *pg)
 	switch (vm_memory_model()) {
 	case VM_MODEL_FLAT:
 		return vm_page_get_pfn_flat(pg);
+	case VM_MODEL_SPARSE:
+		return vm_page_get_pfn_sparse(pg);
 	default:
 		return 0;
 	}