diff --git a/mercurial/subrepo.py b/mercurial/subrepo.py
--- a/mercurial/subrepo.py
+++ b/mercurial/subrepo.py
@@ -569,6 +569,11 @@ class hgsubrepo(abstractsubrepo):
         root = r.wjoin(path)
         create = not r.wvfs.exists('%s/.hg' % path)
         self._repo = hg.repository(r.baseui, root, create=create)
+
+        # Propagate the parent's --hidden option
+        if r is r.unfiltered():
+            self._repo = self._repo.unfiltered()
+
         self.ui = self._repo.ui
         for s, k in [('ui', 'commitsubrepos')]:
             v = r.ui.config(s, k)
diff --git a/tests/test-subrepo-missing.t b/tests/test-subrepo-missing.t
--- a/tests/test-subrepo-missing.t
+++ b/tests/test-subrepo-missing.t
@@ -96,4 +96,14 @@ check that we can update parent repo wit
   revision 102a90ea7b4a in subrepo subrepo is hidden
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
+check that --hidden is propagated to the subrepo
+
+  $ hg -R subrepo up tip
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ hg ci -m 'commit with amended subrepo'
+  $ echo bar > subrepo/a
+  $ hg -R subrepo ci --amend -m "amend a (again)"
+  $ hg --hidden cat subrepo/a
+  foo
+
   $ cd ..