diff --git a/swh/vault/cookers/revision_gitfast.py b/swh/vault/cookers/revision_gitfast.py
--- a/swh/vault/cookers/revision_gitfast.py
+++ b/swh/vault/cookers/revision_gitfast.py
@@ -17,7 +17,7 @@
 )
 
 from swh.model import hashutil
-from swh.model.from_disk import mode_to_perms
+from swh.model.from_disk import DentryPerms, mode_to_perms
 from swh.model.toposort import toposort
 from swh.vault.cookers.base import BaseVaultCooker
 from swh.vault.cookers.utils import revision_log
@@ -203,7 +203,7 @@
                 ):
                     yield FileModifyCommand(
                         path=os.path.join(root, fname),
-                        mode=0o160000,
+                        mode=DentryPerms.revision,
                         dataref=hashutil.hash_to_hex(f["target"]).encode(),
                         data=None,
                     )
diff --git a/swh/vault/to_disk.py b/swh/vault/to_disk.py
--- a/swh/vault/to_disk.py
+++ b/swh/vault/to_disk.py
@@ -124,11 +124,10 @@
         identifier."""
         for file_data in revs_data:
             path = os.path.join(self.root, file_data["path"])
-            self._create_file(
-                path, hashutil.hash_to_hex(file_data["target"]), mode=0o120000
-            )
+            target = hashutil.hash_to_hex(file_data["target"])
+            self._create_file(path, target, mode=DentryPerms.symlink)
 
-    def _create_file(self, path, content, mode=0o100644):
+    def _create_file(self, path, content, mode=DentryPerms.content):
         """Create the given file and fill it with content."""
         perms = mode_to_perms(mode)
         if perms == DentryPerms.symlink: