diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -2429,7 +2429,8 @@ def revert(ui, repo, *pats, **opts):
                     if mfentry:
                         # if version of file is same in parent and target
                         # manifests, do nothing
-                        if pmf[abs] != mfentry:
+                        if (pmf[abs] != mfentry or
+                            pmf.flags(abs) != mf.flags(abs)):
                             handle(revert, False)
                     else:
                         handle(remove, False)
diff --git a/tests/test-revert-flags b/tests/test-revert-flags
new file mode 100755
--- /dev/null
+++ b/tests/test-revert-flags
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+"$TESTDIR/hghave" execbit || exit 80
+
+hg init repo
+cd repo
+echo foo > foo
+chmod 644 foo
+hg ci -qAm '644'
+
+chmod 755 foo
+hg ci -qAm '755'
+
+echo '% reverting to rev 0'
+hg revert -a -r 0
+hg st
+hg diff --git
diff --git a/tests/test-revert-flags.out b/tests/test-revert-flags.out
new file mode 100644
--- /dev/null
+++ b/tests/test-revert-flags.out
@@ -0,0 +1,6 @@
+% reverting to rev 0
+reverting foo
+M foo
+diff --git a/foo b/foo
+old mode 100755
+new mode 100644