diff --git a/arena/arenas.go b/arena/arenas.go
index c95a9fc..c02c41a 100644
--- a/arena/arenas.go
+++ b/arena/arenas.go
@@ -190,7 +190,7 @@ func Paging(page_size, total_reserved_in_bytes uintptr) Arena {
 
 	// @todo(judah): is this needed?
 	runtime.AddCleanup(&base, func(_ struct{}) {
-		if err := mem.Unreserve(base); err != nil {
+		if err := mem.Release(base); err != nil {
 			panic(fmt.Sprintf("paging: failed to release memory - %s", err))
 		}
 	}, struct{}{})
@@ -207,7 +207,7 @@ func Paging(page_size, total_reserved_in_bytes uintptr) Arena {
 				required := offset + aligned
 				to_commit := mem.AlignForward(required, page_size)
 
-				if err := mem.Commit(base[committed:to_commit-committed], mem.PERM_READ|mem.PERM_WRITE); err != nil {
+				if err := mem.Commit(base[committed:to_commit-committed], mem.AccessRead|mem.AccessWrite); err != nil {
 					return nil, fmt.Errorf("paging: failed to commit memory - %w", err)
 				}