diff --git a/mercurial/hg.py b/mercurial/hg.py
--- a/mercurial/hg.py
+++ b/mercurial/hg.py
@@ -1675,7 +1675,7 @@ class localrepository:
             # cross-check
             for node in filenodes[f]:
                 self.ui.warn("node %s in manifests not in %s\n"
-                             % (hex(n), f))
+                             % (hex(node), f))
                 errors += 1
 
         self.ui.status("%d files, %d changesets, %d total revisions\n" %