diff --git a/inst/tests/tests.Rraw b/inst/tests/tests.Rraw
index 417efe348..2cc8453a3 100644
--- a/inst/tests/tests.Rraw
+++ b/inst/tests/tests.Rraw
@@ -16940,7 +16940,7 @@ test(2150.12,fread("a,b\n2015-01-01,2015-01-01", select=c(a="Date",b="POSIXct"))
      data.table(a=as.Date("2015-01-01"), b=as.POSIXct("2015-01-01")))
 test(2150.13, fread("a,b\n2015-01-01,1.1\n2015-01-02 01:02:03,1.2", tz=""), # no Z, tz="" needed for this test from v1.14.0
      if (TZnotUTC) data.table(a=c("2015-01-01","2015-01-02 01:02:03"), b=c(1.1, 1.2))
-     else          data.table(a=setattr(as.POSIXct(c("2015-01-01", "2015-01-02 01:02:03"), tz="UTC"),"tzone","UTC"), b=c(1.1, 1.2)))
+     else          data.table(a=setattr(as.POSIXct(c("2015-01-01 00:00:00", "2015-01-02 01:02:03"), tz="UTC"), "tzone", "UTC"), b=c(1.1, 1.2)))
 # some rows are date-only, some rows UTC-timestamp --> read the date-only in UTC too
 test(2150.14, fread("a,b\n2015-01-01,1.1\n2015-01-02T01:02:03Z,1.2"),
      data.table(a = .POSIXct(1420070400 + c(0, 90123), tz="UTC"), b = c(1.1, 1.2)))