diff --git a/recipe_modules/checkout/api.py b/recipe_modules/checkout/api.py
index 0aff986..2d57cf3 100644
--- a/recipe_modules/checkout/api.py
+++ b/recipe_modules/checkout/api.py
@@ -227,6 +227,10 @@
         self._revision = self._api.checkout.get_revision(self.root)
         return self._revision
 
+    @property
+    def manifest_path(self) -> config_types.Path:
+        return self.root / self.options.manifest_file
+
     def applied_changes(self) -> list[Change]:
         return [x for x in self.changes if x.applied]
 
diff --git a/recipe_modules/checkout/tests/repo.py b/recipe_modules/checkout/tests/repo.py
index 415d7f5..eaecbe7 100644
--- a/recipe_modules/checkout/tests/repo.py
+++ b/recipe_modules/checkout/tests/repo.py
@@ -34,6 +34,7 @@
 
 def RunSteps(api, props):  # pylint: disable=invalid-name
     checkout = api.checkout(props.checkout_options)
+    _ = checkout.manifest_path  # For coverage.
 
     with api.step.nest('changes'):
         for i, change in enumerate(checkout.changes):
diff --git a/recipes/repo_roller.py b/recipes/repo_roller.py
index d2dea13..6f14db9 100644
--- a/recipes/repo_roller.py
+++ b/recipes/repo_roller.py
@@ -75,7 +75,6 @@
 
     props.checkout_options.use_trigger = False
     checkout = api.checkout(props.checkout_options)
-    filepath = checkout.root / checkout.options.manifest_file
 
     new_revision = None
 
@@ -89,7 +88,7 @@
 
     tree = _TreeBuilder()
     parser = xml.etree.ElementTree.XMLParser(target=tree)
-    parser.feed(api.file.read_text('read manifest', filepath))
+    parser.feed(api.file.read_text('read manifest', checkout.manifest_path))
     parser.close()
     root = tree.close()
 
@@ -216,7 +215,7 @@
 
     api.file.write_text(
         'write manifest',
-        filepath,
+        checkout.manifest_path,
         '<?xml version="1.0" encoding="UTF-8"?>\n{}\n'.format(
             xml.etree.ElementTree.tostring(root).decode(),
         ),