diff --git a/tests/test-merge6 b/tests/test-merge6
--- a/tests/test-merge6
+++ b/tests/test-merge6
@@ -36,11 +36,11 @@ hg pull ../B1
 hg merge
 hg commit -m "commit test" -d "1000000 0"
 echo bar should remain deleted.
-hg manifest
+hg manifest --debug
 
 cd ../B2
 hg pull ../A2
 hg merge
 hg commit -m "commit test" -d "1000000 0"
 echo bar should remain deleted.
-hg manifest
+hg manifest --debug