--- a/tests/test-revert-unknown
+++ b/tests/test-revert-unknown
@@ -13,7 +13,7 @@ hg ci -m "2" -d "1000000 0"
 
 echo %% Should show unknown
 hg status
-hg revert -r 0
+hg revert -r 0 --all
 echo %% Should show unknown and b removed
 hg status
 echo %% Should show a and unknown