--- a/tests/test-basic.t	Fri May 19 12:18:25 2017 +0200
+++ b/tests/test-basic.t	Mon May 22 16:59:57 2017 +0200
@@ -6,6 +6,7 @@
   defaults.shelve=--date "0 0"
   defaults.tag=-d "0 0"
   devel.all-warnings=true
+  devel.default-date=0 0
   largefiles.usercache=$TESTTMP/.cache/largefiles (glob)
   ui.slash=True
   ui.interactive=False