--- a/tests/test-revert-unknown
+++ b/tests/test-revert-unknown
@@ -5,11 +5,11 @@ touch unknown
touch a
hg add a
-hg ci -m "1" -d "0 0"
+hg ci -m "1" -d "1000000 0"
touch b
hg add b
-hg ci -m "2" -d "0 0"
+hg ci -m "2" -d "1000000 0"
echo %% Should show unknown
hg status