diff --git a/tests/test-merge3 b/tests/test-merge3
--- a/tests/test-merge3
+++ b/tests/test-merge3
@@ -3,8 +3,8 @@
 hg init
 echo This is file a1 > a
 hg add a
-hg commit -m "commit #0" -d "0 0"
+hg commit -m "commit #0" -d "1000000 0"
 touch b
 hg add b
 rm b
-hg commit -A -m"comment #1" -d "0 0"
+hg commit -A -m"comment #1" -d "1000000 0"